Analisis Bertopik Percubaan Kimia SPM 2016

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Analisis Bertopik Percubaan Kimia SPM 2016

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Koleksi Soalan Percubaan Kimia Esei 2016

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Modul Analisis Be Soalan Percubaan SPM Neger

MoDUL AnALiSIs BerTOpiK SOAlaN PeRCuBAAN SPM NeGeRI 201

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Disusun seikhlas hati:  Useful  Not useful Mohd Fazdli Bin Mohd Nor SMK Pesisiran Perdana, Tangkak, Johor

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 The

Structure of Atoms  Chemical Formula and Equations  Periodic Table of Elements  Chemical Bonds  Acid and Bases  Electrochemistry  Salts  Manufactured Substances in Industry  Rate of Reaction  Carbon Compound  Oxidation & Reduction  Chemical for Consumer

…3 -13 …14 -22 …22 -

31 …31 -32 …32 -43 …44-49 …50-54 …55-62 …62 -66 …67 -79 …80 -92 …92 -94 Sign up to vote on this title

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 The

Structure of Atoms  Chemical Formula and Equations  Periodic Table of Elements  Chemical Bonds  Acid and Bases  Electrochemistry  Salts  Manufactured Substances in Industry  Rate of Reaction  Carbon Compound  Oxidation & Reduction  Chemical for Consumer

…3 -13 …14 -22 …22 -

31 …31 -32 …32 -43 …44-49 …50-54 …55-62 …62 -66 …67 -79 …80 -92 …92 -94 Sign up to vote on this title

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Chapter 2 : The Structure of The Atom [Pahang 2016, No 1] 1.

Diagram 1.1 shows Pn Aminah is frying chicken in the kitchen while Ali and his father are at t living room. Rajah 1.1 menunjukk menunjukkan an Pn Aminah sedang menggoreng menggoreng ayam di dapur dapur, manakala manakala Ali dan ayahn berada di ruang tamu.

Diagram 1.1/ 1.1/ Rajah 1.1 (a) (i) The smell of fried chicken spreads to the living room. Name the process that occured. Bau ayam goreng goreng merebak merebak hingga ke ruang tamu. Namakan Namakan proses proses yang berlaku. Sign up to vote on this title ...............................................................................................................................  Useful  Not useful

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Diagram 1.2 shows the heating curve for solid naphthalene. Rajah 1.2 menunjukkan lengkung pemanasan bagi pepejal naftalena. Temperature/0C Suhu / 0C D

B

C

A

Time/s Masa/s Diagram 1.2/ Rajah 1.2 (i)

On the graph above, show and label the melting point of naphthalene. Pada graf di atas, tunjuk dan labelkan takat lebur naftalena.

Reading a Preview (ii) Draw the arrangement ofYou're particles of naphthalene at AB and CD Lukis susunan zarah naftalena pada AB dan CD. Unlock full access with a free trial.

Download With Free Trial


 AB

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[Negeri Sembilan 2016, No 2(d)] (d)

Diagram 2.2 shows the structure of an atom of one of the element in Diagram 2.1. Rajah 2.2 menunjukkan struktur atom bagi salah satu unsur dalam Rajah 2.1. x

x x

x

x

x

x

x

x

x

x

Diagram 2.2/ Rajah 2.2 (i)

Table 2 shows the guide for structure in Diagram 2.2. Jadual 2 menunjukkan petunjuk bagi struktur atom dalam Rajah 2.2. Subatomic particle Zarah subatom

Name of subatomic particle Nama zarah subatom

x

Electron Elektron

You're Reading a Preview Unlock full access with a free trial.

Download With Free Trial 2 Table 2/ Jadual Complete Table 2. Lengkapkan Jadual 2. Sign up to vote on this title

(ii)

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Useful  Not useful Which element in Diagram 2.1 has the structure of atom as in Diagram 2.2? Dengan menggunakan huruf dalam Rajah 2.1, unsur manakah mempunyai struktu seperti dalam Rajah 2.2?

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[SBP 2016, No 1] (1) Table 1 shows the number of proton and the number of neutron of atoms Y and Z Jadual 1 menunjukkan bilangan proton dan bilangan neutron bagi atom Y dan Z. Atom Atom Y Z

Number of proton Bilangan proton 17 20

Number of neutron Bilangan neutron 18 20

Table 1/ Jadual 1 Based on Table 1: Berdasarkan Jadual 1: (i)

Write the electron arrangement of atom Y. Tulis susunan elektron bagi atom Y.

…………………………………………………………...……………………………………

(ii)

State the period of atom Y in the Periodic Table of Element. Nyatakan kala bagi atom Y dalam Jadual Berkala Unsur.

You're Reading a Preview

……………………………………………………………………………………..………… Unlock full access with a free trial.

(iii)

Give one reason for your answer in 1(a)(ii). Download With Free Trial Beri satu sebab bagi jawapan anda dalam 1(a)(ii).

………………………………………………………………………………………………… Sign up to vote on this title

(iv)

Write the formula of Z ion. Tuliskan formula bagi ion Z.

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Diagram 1/ Rajah 1 (i)

What is the molecular formula of niacin? Apakah formula molekul bagi niasin?

………………………………………………………………………………………………

(ii)

State the type of particle in niacin. You're Nyatakan jenis zarah dalam niasin.Reading a Preview Unlock full access with a free trial.

………………………………………………………………………………………………

Download With Free Trial (iii)

10.0 kg of pineapple it consists of 5.0 g of niacin. What is the number of mole of niacin in kg of pineapple? 10.0 kg nenas mengandungi 5.0 g niasin. Berapakah bilangan mol niasin dalam 10 kg n [Relative Atomic Mass: H=1, C=12, O=16] [ Jisim Atom Relatif: H=1, C=12, O=16]  Sign up to vote on this title

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[MRSM 2016, No 1] 1

(a)

Diagram 1.1 shows the atomic structure of element T. Rajah 1.1 menunjukkan struktur atom bagi unsur T.

Diagram 1.1/ Rajah 1.1 Based on Diagram 1.1; Berdasarkan Rajah 1.1; (i)

identify W. kenalpasti W.

………….………….……………………………………………………………………… (ii)

state the number of protonYou're in element T. a Preview Reading nyatakan bilangan proton bagi unsur T. Unlock full access with a free trial.

………….………….………………………………………………………………………


write the electron arrangement for element T. tulis susunan elektron bagi unsur T.

 Sign up to vote on this title ………….………….………………………………………………………………………  Useful  Not useful

(b)

(i)

Element T has a melting point of 180.5°C.

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Movement of particles: ………….………….…………………………………………… Pergerakan zarah:

(c)

Diagram 1.2 shows the graph of temperature against time when liquid acetamide is cooled. Rajah 1.2 menunjukkan graf suhu melawan masa apabila cecair asetamida disejukkan.

Diagram 1.2/ Rajah 1.2 Based on Diagram 1.2; Berdasarkan Rajah 1.2; (i)

determine the freezing point of acetamide. You're Reading a Preview tentukan takat beku bagi asetamida. Unlock full access with a free trial.

………….………….………………………………………………………………………

Download With Free Trial (ii)

the temperature of acetamide did not change from B to C. Explain why? suhu asetamida tiduk berubah dari B ke C. Terangkan mengapa?

 Sign up to vote on this title ……………………………………………………………………………………………  Useful  Not useful ……………………………………………………………………………………………

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[Perlis 2016, No 2] 2

Table 2 shows the number of proton and the number of neutron in atom R, S and T. Jadual 2 menunjukkan bilangan proton dan bilangan neutron dalam atom R, S dan T. Atom Atom

Number of proton Bilangan proton

Number of neutron Bilangan neutron

R

11

12

S

11

13

T

12

12

Table 2/ Jadual 2 (a)

State three subatomic particles of an atom. Nyatakan tiga zarah sub atom. ..............................................................................................................................

[1 m (b)

(i)

What is meant by isotope? Apakah yang dimaksudkan dengan isotop?


..................................................................................................................... Unlock full access with a free trial.

.....................................................................................................................


(ii)

Which atoms are isotopes? Atom-atom yang manakah merupakan isotop?  Sign up to vote on this title .....................................................................................................................  Useful  Not useful

(iii)

[1 m

State the radioisotope that is used to treat cancer diseases.

[1 m

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.............................................................................................................................. [1 m (d)



Write the symbol for atom S in the form of  . 

Tuliskan simbol bagi atom S dalam bentuk  .

........................................................................................................................................... [1 m (e)

(i)

Draw the electron arrangement of atom T. Lukiskan susunan elektron bagi atom T.

[1 m (ii)

State the position of element of atom T in the Periodic Table of Element. Nyatakan kedudukan unsur bagi atom T dalam Jadual Berkala Unsur.


.............................................................................................................................. Unlock full access with a free trial. [1 m

[Pulau Pinang 2016, No 2]


2. (a) Table 2.1 shows the number of protons and number of neutrons for atoms A, B, C, D and E. Jadual 2.1 menunjukkan bilangan proton dan bilangan neutron bagi atom A, B, C, D, dan E. Atom Atom A B

 Sign up to vote on Number this title of neutrons Number of protons Bilangan proton neutron useful  Useful  Not Bilangan 8 8 9 10

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12 (ii)





Which atoms are isotopes? Atom-atom manakah adalah isotop?

………………………………………………………………………………………………

(iii)

Determine the nucleon number of atom C. Tentukan nombor nukleon bagi atom C.

…………………………………………………………………………………………….

(iv)

Write the electron arrangement for atom D. Tuliskan susunan elektron bagi atom D.

………………………………………………………………………………………….…

(b) Table 2.2 shows the melting point and boiling point of lead(II) bromide. Jadual 2.2 menunjukkan takat lebur dan takat didih bagi plumbum(II) bromida. Melting point o  373 C Takat lebur Boiling point o  916 C You're Reading a Preview Takat didih Table 2.2/ Jadual 2.2 Unlock full access with a free trial.

(i) State the types of particles in lead(II) bromide. Trial Nyatakan jenis zarah yang Download terkandung With dalamFree plumbum(II) bromida.

……………………………………………………………………………………………… Sign up to vote on this title (c) Table 2.2 shows the melting point and boiling point of lead(II) bromide. Not useful  Useful  Jadual 2.2 menunjukkan takat lebur dan takat didih bagi plumbum(II) bromida.

Melting point

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(ii) Sketch the graph temperature against time if lead(II) bromide is cooled from 500 oC to ro temperature. Lakarkan graf suhu melawan masa sekiranya plumbum(II) bromida disejukkan daripada 500 oC ke suhu bilik.

[2 m (iii) What is the state of matter of lead(II) bromide at 500 oC? Apakah keadaan jirim plumbum(II) bromida pada suhu 500 oC?

………………………………………………………………………………………………

(iv) Draw the arrangement of particles in b(iii). Lukis susunan zarah dalam (b)(iii).


Unlock full access with a free trial.



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Chapter 3 : Chemical Formulae and Equation [Negeri Sembilan 2016, No 3] 3

(a)

Diagram 3 shows an educational TV program. Rajah 3 menunjukkan satu rancangan TV pendidikan. Chemists use unit of mol to measure the quantity of a substance. Ahli kimia menggunakan unit mol untuk menyukat kuantiti bahan.

Diagram 3/ Rajah 3 (i)

What is the meaning of a mole? Apakah yang dimaksudkan dengan satu mol ?

...................................................................................................................................

You're Reading a Preview (ii)

Calculate the numbers in a0.01 Unlockof fullparticles access with free mol trial. of iron. 23 -1 [Avogadro constant = 6.02 X 10 mol ] Hitungkan bilangan zarah-zarah dalam 0.01 mol besi. Download Free -1 Trial [ Pemalar Avogadro = 6.02 X With 1023 mol ]


(b)

 Useful  Not useful The equation below is not a balance chemical equation: Persamaan dibawah adalah bukan persamaan kimia yang seimbang:

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15 (c)


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Alkene E is an unsaturated hydrocarbon. E contains 85.7% of carbon , 14.3% of hydro and the relative molecular mass of E is 42. [Relative atomic mass : H=1; C=12] Alkena E adalah suatu hidrokarbon tak tepu. E mengandungi 85.7% karbon, mengikut jisim dan jisim molekul relatif bagi E ialah 42. [ Jisim atom relatif : H=1 ; C (i)

Determine the empirical formula of E. Tentukan formula empirik bagi E.

(ii)

Determine the molecular formula of E. Tentukan formula molekul bagi E.


Download With Free Trial [Perlis 2016, No 3] 3

Diagram 3.1 shows the structural formulae of compound Q.up to vote on this title Sign Rajah 3.1 menunjukkan formula struktur sebatian Q.  Useful  Not useful

H

O

H

H

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Complete the table 3 below. Lengkapkan jadual 3 dibawah. Structural formula Formula struktur

H H

C H

(iii)

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16 (ii)


O C

O

Molecular Empirical formula formula Formula molekul Formula empi

H

H

C

C

H

H

……………....

H

………………..

The relative molecular mass of Mg 3(XO4)2 ialah 262. What is the relative ato element X. [Relative atomic mass: Mg; 24, O; 16] Jisim molekul relative bagi Mg 3(XO4 )2 adalah 262. Apakah jisim atom relatif b [ Jisim atom relative : Mg;24, O; 16 ]


Download With Free Trial (b)

Diagram 3.2 shows the apparatus set-up for the heating of copper (II) carbonate, CuCO Rajah 3.2 menunjukkan susunan radas bagi pemanasan serbuk kuprum (II) karbonat,  Sign up to vote on this title

 Copper (II) carbonate powder Serbuk kuprum (II) karbonat

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17 (ii)


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Name the gas released in this experiment. Namakan gas yang dibebaskan dalam eksperimen ini. ..............................................................................................................................

(iii)

Write a balanced equation for this reaction. Tulis persamaan kimia yang seimbang bagi tindakbalas ini. ..............................................................................................................................

(iv)

6.4 g of cuprum (II) carbonate powder, CuCO 3 is heated during this experiment Calculate the volume of gas released. [Relative atomic mass:C=12; O=16;Cu=64; 1 mol gas occupies 24 dm 3 at room temperature] 6.4g serbuk kuprum(II) karbonat, CuCO3 dipanaskan semasa eksperimen ini. Hitung isipadu gas yang dibebaskan. [ Jisim atom relatif :C=12; O=16;Cu=64; 1 mol gas occupies 24 dm 3 pada suhu



[Terengganu 2016, No 3] 3




Diagram 3 shows the structural formula of compound X. Rajah 3 menunjukkan formula struktur sebatian X.

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18 (b)


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State the meaning of empirical formula. Nyatakan maksud bagi formula empirik.

................................................................................................................................................

................................................................................................................................................

(c)

(i)

Write the molecular formula and the empirical formula of compound X. Tuliskan formula molekul dan formula empirik bagi sebatian X. Molecular formula: Formula molekul: ………………………………………………………………………

Empirical formula Formula empirik: …………………………………………………………………………

(ii)

State one similaritiy and one difference between the molecular formula and t formula in (c)(i). Nyatakan satu persamaan dan satu perbezaan antara formula molekul dan for dalam (c)(i).

......................................................................................................................................


...................................................................................................................................... Unlock full access with a free trial.

(d)

(i)

Download Free Trial Write the chemical equation for With the reaction between compound X and magnesium Tulis persamaan kimia bagi tindak balas antara sebatian X dengan magnesium

......................................................................................................................................  Sign up to vote on this title (ii)

Not useful Calculate the mass of magnesium reacts with mol of  compound X.  1Useful [Relative atomic mass:Mg=24] Hitung jisim magnesium yang bertindak balas lengkap dengan 1 mol sebatian X

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19

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[Pulau Pinang 2016, No 3]

3. Diagram 3 shows the apparatus set-up to determine the empirical formula of magnesium oxide. Rajah 3 menunjukkan menunjukkan susunan radas untuk menentukan formula empirik magnesium oksida. Lid penutup Magnesium ribbon Pita magnesium

Crucible Mangkuk pijar

Heat panaskan Diagram 3/ Rajah 3 (a) When carrying out the experiment, why does the crucible lid need to be opened once awhile? Semasa menjalankan eksperimen, mengapakah penutup mangkuk pijar perlu dibuka sekali sekala?

…..………………………………………………………………………………………………

You're Reading a Preview Unlock full access with a free trial. (b) Table 3 shows the results of the experiment Jadual 3 menunjukkan keputusan eksperimen ini.

Download With Free Trial Description Penerangan

Mass (g) Jisim (g)

Mass of crucible + lid Jisim mangkuk pijar + penutup 21.45  Sign up to vote on this title Mass of crucible + lid + magnesium  Useful  Not useful Jisim mangkuk pijar + penutup + magnesium 23.85 Mass of crucible + lid + magnesium oxide Jisim mangkuk pijar + penutup + magnesium oksida 25.45

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20




(ii) Number of moles of magnesium Bilangan mol magnesium

(iii) Mass of oxygen Jisim oksigen

(iv) Number of moles of oxygen Bilangan mol oksigen

(v)

Empirical formula of magnesium oxide Formula empirik magnesium oksida

…..………………………………………………………………………………………… You're Reading a Preview Unlock full access with a free trial.

(c) Write the chemical equation for the reaction between magnesium and oxygen Tulis persamaan kimia bagi tindak balas antara magnesium Download With Free Trial dan oksigen

…..……………………………………………………………………………………………… [2 m

 Sign up to vote on this title (d) Can the method above be used to determine the empirical formula of lead(II) oxide? Give a reason.  Useful  Not useful Bolehkah kaedah di atas digunakan untuk menentukan formula empirik plumbum(II) oksida? Berikan satu sebab.

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21




[Pahang 2016, No 2] 2.

Diagram 2 shows the apparatus set-up to determine the empirical formula of copper(II) oxide. Rajah 2 menunjukkan susunan radas untuk menentukan formula empirik kuprum(II) oksida. Copper(II) oxide Kuprum(II) oksida H2 H2

Heat Panaskan

Solution X Larutan X Metal Y Logam Y

Anhydrous calcium chloride Kalsium klorida kontang Diagram 2/ Rajah 2

(a) State the meaning of empirical formula. Nyatakan maksud formula empirik. …………………………………………………………………………………………


………………………………………………………………………………………… Unlock full access with a free trial. [1 mark (b) Solution X and metal Y reactsDownload to produce With hydrogen Freegas. Trial State the name of solution X and metal Y. Larutan X dan logam Y bertindak balas menghasilkan gas hidrogen. Nyatakan nama bagi larutan X dan logam Y.  Solution X : ………………………………………………………………………..... Sign up to vote on this title Larutan X  Useful  Not useful

Metal Y : ………………………………………………………………………...... Logam Y

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22




(ii) Write a balanced chemical equation for the reaction between hydrogen gas and copper(II) oxide Tuliskan persamaan seimbang bagi tindak balas antara gas hidrogen dan kuprum(II) oksida

……...…………………………………………………………………………….. [1 mark

(e) How to ensure that all of the copper(II) oxide has been reduced to copper? Bagaimana untuk memastikan semua kuprum(II) oksida telah diturunkan kepada kuprum?

………………………………………………………………………………………… [1 mark (f)

Can the empirical formula for aluminium oxide be determine by using this method? Give one reason for your answer.

Bolehkan formula empirik bagi aluminium oksida ditentukan dengan menggunakan kaedah ini? Berikan satu alasan bagi jawapan anda. …..……………………………………………………………………………………..

..……………………………………………………………………………………….. [2 marks You're Reading a Preview Unlock full access with a free trial. Chapter 4 : The Periodic Table of Elements


[SBP 2016, No 2] 2

Diagram 2.1 shows the standard representation for the atoms of three elements from Group 17 in the Periodic Table of Element.  Rajah 2.1 menunjukkan perwakilan piawai atom bagi tigaSign unsur daripada Kumpulan 17 di da up to vote on this title Jadual Berkala Unsur.  Useful  Not useful

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Koleksi Soalan Percubaan Kimia Esei 2016 FAQs Kimia SPM T5 2015.doc

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23 (b)





State the number of valence electrons of bromine atom. Nyatakan bilangan elektron valens pada pada atom bromin.

..............................................................................................................................................

(c)

(i)

Compare the size of the chlorine atom with the bromine atom. Bandingkan saiz atom klorin dengan atom bromin.

.....................................................................................................................................

.....................................................................................................................................

(ii)

Explain your answer in (c) (i) Terangkan jawapan anda dalam (c) (i).

.....................................................................................................................................

.....................................................................................................................................

(d)

Chlorine reacts with sodium to form a compound. You're a Preview Klorin bertindak balasReading dengan natrium membentuk satu sebatian Unlock full with a free trial. Draw the electron arrangement ofaccess the compound formed. Lukis susunan elektron bagi sebatian yang terbentuk. [Proton number Na = 11][ Nombor proton Na 11] Download With Free= Trial


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24 (i)





State the observation on the litmus paper Nyatakan pemerhatian pada kertas litmus.

.................................................................................................................................... (ii)

Give a reason for your answer in (e)(i) Berikan alasan bagi jawapan anda dalam (e)(i)

....................................................................................................................................

[Terengganu 2016, No 2] 2

Diagram 2 shows the position of five elements; A, B, C, D and E in the Periodic Table. The le below are not the actual symbols of the elements. Rajah 2 menunjukkan kedudukan lima unsur; A, B, C, D dan E dalam Jadual Berkala. disenaraikan di bawah bukan simbol yang sebenar bagi unsur-unsur .


Diagram 2/ Rajah 2

Download With Free Trial Based on Diagram 2, answer the following questions: Berdasarkan Rajah 2, jawab soalan-soalan berikut: (a)

 What is the basic principle used in arranging the Sign elements in Periodic Table of Elemen up to vote on this title Apakah prinsip asas yang digunakan dalam penyusunan Not useful dalam Jadu  Useful unsur-unsur Unsur?

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25 (d)


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Compare the reactivity between element C and E. Explain your answer. Bandingkan kereaktifan antara unsur C dan E . Jelaskan jawapan anda.

..............................................................................................................................................

..............................................................................................................................................

..............................................................................................................................................

(e)

Arrange the atomic size of A, B, C, D and E in descending order. Susun saiz atom-atom A, B, C, D dan E mengikut tertib susunan menurun.

..............................................................................................................................................

(f)

Nickel is well known as a useful catalyst for hydrogenation reaction in manufacture of State the element with similar properties with nickel. Nikel terkenal sebagai mangkin dalam tindak balas penghidrogenan dalam pembuata Nyatakan unsur yang mempunyai sifat yang sama dengan nikel.

..............................................................................................................................................

You're Reading a Preview [Negeri Sembilan 2016, No 2] 2


Diagram 2.1 shows a portion of the Periodic Table of Elements. The letters listed below are Download With Free Trial symbols of the elements. Rajah 2.1 menunjukkan sebahagian daripada Jadual Berkala Unsur. Huruf yang disenarai bukan simbol yang sebenar bagi unsur-unsur . 1 1

13 14 15 Sign up to vote on this title

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2

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V

 16

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26 (b)





Element W belong to a group that has special characteristics which differentiate it f group. Name the group and state one special characteristic of the group. Unsur W tergolong dalam kumpulan yang mempunyai ciri-ciri istimewa yang me daripada kumpulan lain. Namakan kumpulan itu dan nyatakan satu ciri istimewa kum

..............................................................................................................................................

..............................................................................................................................................

(c)

Write the chemical equation when Y is dissolved in water. Tulis persamaan kimia apabila Y dilarutkan dalam air .

..............................................................................................................................................

[Kedah 2016, No 1] 1.

Diagram 1 shows a part of the Periodic Table of Elements. W, X, Y and Z are not the actual sy elements. Rajah 1 menunjukkan sebahagian daripada Jadual Berkala Unsur. W, X, Y dan Z bukan si unsur tersebut.

You're Reading a Preview X

W


Y

Z


Based on Diagram 1, Berdasarkan Rajah 1 , (a)

(i)

Diagram 1/ Rajah 1 to vote on this title Sign up

Write an electron arrangement of atom W.

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27 (b)





The information below shows the special characteristics of an element in Diagram 1. Maklumat di bawah menunjukkan ciri istimewa bagi suatu unsur dalam Rajah 1. 



Form coloured compounds Membentuk sebatian berwarna Acts as catalyst Bertindak sebagai mangkin

Which element shows the above characteristics? Unsur manakah menunjukkan ciri di atas? ..................................................................................................................................................

(c)

The atomic size of Y is smaller than X. Explain why. Saiz atom Ylebih kecil daripada atom X. Terangkan mengapa. .................................................................................................................................................. .................................................................................................................................................

(d)

(e)

Element Q has three shells occupied with electron and three valence electrons. Mark Q, in Diagram 1 to indicate the position of element Q. You're Reading a Preview Element Q mempunyai tiga petala berisi elektron dan tiga elektron valens. Tanda Q, di dalam Rajah 1bagi menunjukkan kedudukan unsur Q. Unlock full access with a free trial.

Download With Trial When a small piece of element X is put intoFree water, alkaline solution is formed and released. Apabila satu ketulan kecil unsur X dimasukkan kedalam air, larutan beralkali terhasil dan terbebas.  Sign up to vote on this title (i) Write a chemical equation for this reaction.  Useful  Not useful Tuliskan persamaan kimia bagi tindakbalas ini.

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[Pahang 2016, No 3] 3.

Diagram 3 shows some of the elements in the periodic table of elements. Rajah 3 menunjukkan sebahagian unsur-unsur kala 3 dalam Jadual Berkala Unsur.

Na

Mg

Al

Cl

Ar

Diagram 3 / Rajah 3 (a) Based on Diagram 3, answer the following question. Berdasarkan Rajah 3, jawab soalan berikut: (i)

State group of Cl in the Periodic Table of Elements. Nyatakan kumpulan bagi unsur Cl dalam Jadual Berkala Unsur. ..............................................................................................................................

[1 m (ii) State which element that exists as a metal Nyatakan unsur manakah yang wujud sebagai logam.


.................................................................................................................................. Unlock full access with a free trial.

[1 m

(b) (i) State which element formed an amphoteric oxide.Trial Download With Free Nyatakan unsur manakah yang membentuk oksida amfoterik ...............................................................................................................................  Sign up to vote on this title



Useful  Not useful (ii) Based on answer in (b)(i), write the formula for the compound formed. Berdasarkan jawapan di (b)(i), tuliskan formula bagi sebatian yang terbentuk.

[1 m

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(ii) Explain how the compound in (c)(i) f ormed. Terangkan bagaimana pembentukan sebatian (c)(i) terhasil.

Mg = ................................................................................................................................

Cl = ................................................................................................................................ [2 marks (iii) Draw the electron arrangement for the compound formed. Lukis susunan elektron bagi sebatian yang terbentuk

[2 m (iv) State one physical properties of these compounds. You're Reading a Preview Nyatakan satu sifat fizik sebatian ini. Unlock full access with a free trial.

...............................................................................................................................................


[Pulau Pinang 2016, No 4] 

4. Diagram 4 shows the position of several elements Q, R, S, T, U,up Wtoand X.on this title Sign vote Rajah 4 menunjukkan kedudukan beberapa unsur-unsur Q, R, S, T, U, W dan X.  Useful  Not useful Q

R S

T

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


(b) (i) State one element that is monoatomic. Nyatakan satu unsur monoatom.

…...…..…………………………………………………………………………………………

(ii) Why does the element in b (i) exist as monoatomic? Mengapakah unsur dalam b(i) wujud sebagai monoatom?

…...…..…………………………………………………………………………………………

…...…..………………………………………………………………………………………… [2 m (c) (i) Identify the element that reacts with water to produce hydrogen gas. Kenal pasti unsur yang bertindak balas dengan air untuk menghasilkan gas hidrogen.

…...…..…………………………………………………………………………………………

(ii) Write the balanced chemical equation for the reaction in c(i). Tulis persamaan kimia yang seimbang bagi tindak balas di c(i).

…...…..………………………………………………………………………………………… You're Reading a Preview Unlock full access with a free trial.

(d) Identify the element that can forms a coloured solution when dissolved in water. Download With Free Trial Kenal pasti unsur yang menghasilkan larutan yang berwarna apabila dilarutkan dalam air

…...…..………………………………………………………………………………………… Sign up to vote on this title

(e)

Gas Q 

light / ringan

 

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useful  Not Gas R

light / ringan

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31




Chapter 5 : Chemical Bonds [Kedah 2016, No 3] 3

Diagram 3 shows standard representation of element X, Y and Z. Rajah3 menunjukkan perwakilan piawai bagi unsur X, Y dan Z.

23 11 

12 6

16 8

Diagram 3/ Rajah 3 Based on Diagram 3, answer the following questions: Berdasarkan Rajah 3, jawab soalan-soalan berikut: (a)

(i)

State the valence electron of element Y. Nyatakan elektron valen bagi unsur Y.

......................................................................................................................................

(ii)

What is the physical state of element Y at room temperature? Apakah keadaan fizik unsur Y pada suhu bilik ?

......................................................................................................................................


(b)


Element Y and element Z can react to form a compound. Unsur Y dan unsur Z boleh bertindakbalas untuk membentuk suatu sebatian.


(i)

Write the formula of the compound. Tuliskan formula sebatian itu.

 ...................................................................................................................................... Sign up to vote on this title

 (ii)

Useful

 Not useful

Explain the melting point and boiling point of the compound. Terangkan tentang takat lebur dan takat didih bagi sebatian itu.

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32

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......................................................................................................................................

(ii)

Draw the electron arrangement of the compound. Lukiskan susunan elektron bagi sebatian itu.

Chapter 6 : Asid and Bases [Terengganu 2016, No 5] 5

Table 5 shows the information about four solutions; P, Q, R and S. P, Q, R and S may be acid or alkali. Jadual 5 menunjukkan maklumat tentang empat larutan P, Q, R dan S. Larutan P, Q, R dan S mungkin asid atau alkali. Solution Larutan

Information Maklumat You're Reading a Preview

P

Unlock fullin access with a free trial. Ionised completely water Mengion lengkap dalam air

Q

Ionised partially in water Mengion separa lengkap dalam air

R

Ionised completely in water Mengion lengkap dalam air

pH value Nilai pH

2


Sign up to vote on13 this title

 S

6

Ionised partially in water Mengion separa lengkap dalam air

Useful

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33 (ii)

(c)





weak acid / asid lemah

: ……………………………………………………….. [2 Diagram 5.1 shows a bottle of powder malic acid. Rajah 5.1 menunjukkan sebotol serbuk asid malik.

Diagram 5.1 / Rajah 5.1

Malic acid is a weak acid which is found naturally in green apples and in a wide variety o unripe fruits. Asid malik merupakan suatu asid lemah yang wujud secara semula jadi dalam epal hija dan juga dalam pelbagai jenis buah-buahan yang belum masak.

Describe a chemical test to prove that the malic acid is an acid. Reading a Preview Huraikan satu ujian kimiaYou're untuk membuktikan bahawa asid malik merupakan suatu asi Unlock full access with a free trial.

……………………………………………………………………………………………

Download With Free Trial ……………………………………………………………………………………………

(d)

…………………………………………………………………………………………… [3  Signcm up 3to thisdm title -3 Diagram 5.2 shows a volumetric flask containing 500 ofvote 2.0on mol sodium hydro  Useful  Not useful solution. This solution is known as a standard solution. Rajah 5.2 menunjukkan sebuah kelalang volumetrik yang mengandungi 500 cm3 larutan natrium hidroksida 2.0 mol dm-3. Larutan ini dikenali sebagai larutan piawai.

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34 (i)





To prepare the standard solution in Diagram 5.2, a student added x g of solid sodi hydroxide into a 500 cm3 volumetric flask. Then, distilled water is added until graduation mark is reached. Untuk menyediakan larutan piawai seperti dalam Rajah 5.2, seorang pelajar tela menambahkan x g pepejal natrium hidroksida ke dalam sebuah kelalang volumetr 500 cm3. Kemudian, air suling ditambahkan sehingga mencapai tanda senggatan Calculate the value of x . Hitungkan nilai x . [Molar mass of sodium hydroxide, NaOH = 40] [ Jisim molar bagi natrium hidroksida, NaOH = 40]

[2 (ii)

You're Reading The standard solution in Diagram 5.2aisPreview used to determine the concentration of a sample of sulphuric acid by titration method. Unlock full access with a free trial. Diagram 5.3 shows the apparatus set-up used. Larutan piawai dalam Rajah 5.2 digunakan untuk menentukan kepekatan satu co Download With Free Trial asid sulfurik menggunakan kaedah pentitratan. Rajah 5.3 menunjukkan susunan alat radas yang digunakan.


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35




Complete neutralisation of 50.0 cm 3 of 2.0 mol dm-3 sodium hydroxide solution required 25.0 cm3 of the sulphuric acid. Peneutralan lengkap 50.0 cm3 larutan natrium hidroksida 2.0 mol dm-3 memerluk 25.0 cm3 asid sulfurik. Calculate the concentration of the sulphuric acid in mol dm -3. Hitungkan kepekatan asid sulfurik tersebut dalam mol dm-3.

[3

[Negeri Sembilan 2016, No 4] 4

(a)


Table 4 shows the pH value of different concentration of ethanoic acid solutions. Jadual 4 menunjukkan nilai pH bagi larutan asid etanoik dalam kepekatan yang berbeza.


Set Set I II

(i)

Concentration (mol dm-3) pH value -3 Kepekatan, (mol dm ) Nilai pH 0.1 3 0.01 4  Sign up to vote on this title Table 4 / Jadual 4  Useful  Not useful

Draw the structural formula of ethanoic acid. Lukiskan formula struktur bagi asid etanoik

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36 (b)



Diagram 4 shows the series of reactions involving ammonia. Rajah 4 menunjukkan satu siri tindak balas yang melibatkan ammonia.

Ammonia Ammonia

+ Solvent X + Pelarut X

Solution P Larutan P Process Y Proses Y

+ Nitric acid + Asid nitrik

Solution Q Larutan Q Diagram 4/ Rajah 4 (i)

Write the chemical formula of ammonia. Tuliskan formula kimia bagi ammonia. .........................................................................................................................................

(ii)

State the type of particles in ammonia. You'reammonia. Reading a Preview Nyatakan jenis zarah dalam Unlock full access with a free trial.

.........................................................................................................................................


Solution P change red litmus paper to blue. State the particle that cause the changes. Larutan P menukarkan kertas litmus merah ke biru. Nyatakan zarah yang menyebabkan perubahan itu. Sign up to vote on this title

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 Useful  Not useful .........................................................................................................................................

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37




......................................................................................................................................... ......................................................................................................................................... .........................................................................................................................................

[Kedah 2016, No 4] 4.

Diagram 4.1 shows the reading of pH meter, dipped into acid solutions P, Q, R and S. Rajah 4.1 menunjukkan bacaan meter pH, yang dicelup ke dalam larutan asid P, Q, R dan S.

pH1.0

pH2.0

pH3.0

pH4.0

Solution P Larutan P

Solution Q Larutan Q

Solution R Larutan R

Solution S Larutan S

You'reDiagram Reading a Rajah 4.1 Preview 4.1/ (a)

State the meaning of acid. Nyatakan maksud asid.



..........................................................................................................................................................

(b)

Which of the solutions has the lowest degree of ionisation?  Sign up to vote on this title Larutan yang manakah mempunyai darjah pengionan yang terendah?  Useful  Not useful ..........................................................................................................................................................

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38 (d)





Diagram 4.2 shows the apparatus set-up to determine the end point of neutralisation bet moldm-3 sulphuric acid added to 20 cm 3 of sodium hydroxide solution. The ammeter readings are recorded for each 5cm 3 addition of sulphuric acid. Rajah 4.2 menunjukkan susunan radas untuk menentukan takat akhir peneutralan antara asi 1.0 mol dm-3 yang ditambahkan ke dalam 20 cm3 larutan natrium hidroksida. Bacaan ammeter direkodkan setiap kali 5 cm3asid sulfurik ditambahkan. 1.0 moldm-3 sulphuric acid Asid sulfurik 1.0 moldm-3

A

20 cm3 natrium hydroxide solution 20 cm3larutan natrium hidroksida

Carbon electrodes Elektrod-elektrod karbon

Diagram 4.2/ Rajah 4.2


A graph of the ammeter readings versus the volumes of sulphuric acid is as shown in Diagram Graf bacaan ammeter melawan isi padu asid sulfurik ditunjukkan dalam Rajah 4.2.


Ammeter reading (A) Bacaan ammeter (A) 3.5

3.0

2.5


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39 (i)





Based on Diagram 4.3, determine the volume of sulphuric acid needed when the end achieved. Berdasarkan Rajah 4.3 , tentukan isipadu asid sulfurik yang diperlukan apabila dicapai.

................................................................................................................................................

(ii)

Write a chemical equation for this reaction. Tuliskan persamaan kimia bagi tindak balas ini.

................................................................................................................................................

(iii)

Calculate the molarity of the sodium hydroxide solution. Hitungkan kemolaran larutan natrium hidroksida.




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40


[MRSM 2016, No 3] 3

Table 3 shows the information of two substances; E and F. Jadual 3 menunjukkan maklumat bagi dua bahan; E dan F.

Substance

E

F

Bahan

As food flavouring and preservative. Sebagai perisa dan pengawet makanan.

As electrolyte in car battery. Sebagai elektrolit dalam bateri kereta.

Uses Kegunaan


Download With Free Trial Table 3/ Jadual 3 (a)

(i)

State the ion that causes the acidic properties of E and F. Nyatakan ion yang menyebabkan sifat keasidan bagi E dan F. Sign up to vote on this title

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41 (iv)





Describe a chemical test to verify substance F. Huraikan satu ujian kimia bagi mengesahkan bahan F.

………….………….………………………………………………………………………

(b)

The chemical equation for the reaction between acid H2X and zinc carbonate powder is as follows: Persamaan kimia bagi tindak balas di antara asid H2X dan serbuk zink karbonat adalah berikut: H2X + ZnCO3 → ZnX + CO2 + H2O

Acid H2X reacts with zinc carbonate to produce 448 cm 3 of carbon dioxide gas at standard temperature and pressure. Calculate the mass of zinc carbonate used in this reaction. [Relative atomic mass; Zn = 65, C = 12, O = 16, Molar volume of gas = 22.4 dm 3 mol-1] Asid H 2 X bertindak balas dengan zink karbonat untuk menghasilkan 448 cm3 gas karbon dioks pada suhu dan tekanan piawai. Kira jisim zink karbonat yang digunakan dalam tindak balas i [Jisim atom relatif; Zn = 65, C = 12, O = 16, Isipadu molar gas = 22.4 dm 3mol -1 ]



[Pahang 2016, No 4] 4.

(a) Diagram 4.1 shows the pH value of hydrochloric acid and acid X of the same molarity. Rajah 4.1 menunjukkan nilai pH bagi asid hidroklorik dan asid X yang mempunyai kemolaran  Sign up to vote on this title sama.

 1.0

Hydrochloric acid Asid hidroklorik

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Acid X

Asid X

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42




(ii) Explain why the pH value of aqueous solution of acid X is higher than the pH value o hydrochloric acid

Jelaskan mengapa nilai pH larutan akueus asid X lebih tinggi berbanding nilai pH hidroklorik. ................................................................................................................................ ...............................................................................................................................

[2 m

(iii) When water is added into beaker M, what happen to the pH value of the hydrochloric a Give reason to your answer. Apabila air ditambahkan ke dalam bikar M, apakah yang akan terjadi pada nilai pH asid hidroklorik? Berikan alasan anda.

................................................................................................................................ ................................................................................................................................

[2 m

(b) Diagram 4.2 shows the steps involved in the preparation of a standard solution X. Rajah 4.2 menunjukkan langkah-langkah yang terlibat dalam penyediaan larutan piawai X


Unlockthe fullmass accessof with free trial. Calculate X asolute needed Hitung jisim bahan terlarut X yang diperlukan

Download With Free Trial Weight out the exact mass of X solute needed Timbang jisim bahan terlarut X dengan tepat Sign up to vote on this title Dissolve the solute X in a small amount of Useful water distilled  Not useful Larutkan bahan terlarut X ke dalam sejumlah kecil air suling

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43 (i)


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State the meaning of standard solution Nyatakan maksud larutan piawai. .................................................................................................................................

[1 mar

(ii) The concentration of standard solution X produced is 1.0 mol dm -3. By using the sta solution produced, Nazmi need to prepare solution X with a lower concentration. Nam method used to prepare a solution with lower concentration. Kepekatan larutan piawai X yang terhasil adalah 1.0 mol dm -3. Dengan menggun larutan piawai yang dihasilkan, Nazmi perlu menyediakan larutan X dengan kepekatan lebih rendah. Namakan kaedah yang perlu digunakan untuk menyediakan larutan de kepekatan yang lebih rendah.

................................................................................................................................

[1 mark (iii)

A volumetric flask is more suitable to be used to prepare standard solution rather than a beaker. Why? Kelalang volumetric lebih sesuai digunakan untuk menyediakan larutan piawai berbanding bikar. Mengapa? ..............................................................................................................................

You're Reading a Preview .............................................................................................................................. Unlock full access with a free trial.

(iv)

[1 mark

Free Trial -3 Calculate the volume ofDownload 2.0 mol dmWith sulphuric acid, H 2SO4 needed to prepare 100 c -3 1.0 mol dm sulphuric acid, H 2SO4. Hitung isipadu 2.0 mol dm-3 asid sulfurik, H 2SO4 yang diperlukan untuk menyediakan 100 cm3 1.0 mol dm-3 asid sulfurik, H 2SO4.  Sign up to vote on this title

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44


Chapter 7 : Electrochemistry [Negeri Sembilan 2016, No 5] 5

Diagram 5 shows two electrolytic cells with different concentration of sodium chloride solution as electrolyte. Rajah 5 menunjukkan dua sel elektrolisis dengan larutan natrium klorida sebagai elektrolit.

1.0 mol d Sodium c solution Larutan klorida 1.0 mol d

-3

0.001 mol dm Sodium chloride solution Larutan natrium klorida 0.001 mol dm-3

Carbon electrode Elektrod karbon

Cell I

Cell II Diagram 5/ Rajah 5

(a)

Write the formula of all anions and cations present in sodium chloride solution. Tuliskan formula bagi semua anion dan kation yang terdapat dalam larutan natrium klorid Anions : ............................................... Cations : ................................................... Anion Kation


(b)


Based on Cell I and Cell II in Diagram 5, Berdasarkan Sel I dan Sel II dalam Rajah 5 ,


(i)

Name the product formed at the anode. Namakan hasil yang terbentuk di anod. Cell I Sel I

:

Cell II : Sel II

........................................................................ Sign up to vote on this title

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.........................................................................

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45 (c)





A colourless gas is produced at the cathode of Cell II and the gas is collected in a test tube. Describe one chemical test to identify the gas produced. Gas tanpa warna yang terhasil di katod dalam Sel II telah dikumpulkan dalam sebuah tabu Huraikan satu ujian kimia bagi mengenalpasti gas itu. .................................................................................................................................................. ..................................................................................................................................................

(d)

A voltaic cell can generate electricity. By choosing any two metal strips given in the box, draw a labelled diagram of apparatus se voltaic cell that can produce the highest voltage. Sel voltan boleh menghasilkan arus elektrik. Dengan memilih mana-mana dua kepingan logam yang diberi dalam kotak, lukiskan berlabel bagi susunan radas sel voltan bagi menghasilkan voltan paling tinggi. Magnesium strip Kepingan Magnesium

Copper strip Kepingan Kuprum

Silver strip Kepingan Argentum




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46




[MRSM 2016, No 4] 4

Diagram 4.1 shows two metals inserted in a potato that contains phosphoric acid, H3PO4. A student foun emitting diode (LED) bulb is lighted. Rajah 4.1 menunjukkan dua logam yang dimasukkan ke dalam kentang yang mengandungi asid fosforik pelajar mendapati mentol diod pemancar cahaya (LED) tersebut menyala.

Iron Ferum

Magnesium Magnesium

Diagram 4.1/ Rajah 4.1 (a) Name the type of cell in Diagram 4.1. Namakan jenis sel dalam Rajah 4.1.


………….………….………………………………………………………………………………… Unlock full access with a free trial.

(b)

State the energy conversion that occur in the cell stated in (a). Download With Free Trial Nyatakan perubahan tenaga yang berlaku dalam sel yang dinyatakan di (a).

………….………….…………………………………………………………………………….……

(c)

Sign up to vote on this title Write the half equation for the reaction that occurs at positive Useful  Not useful terminal. Tuliskan setengah persamaan bagi tindakbalas yang berlaku di terminal positif.

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47




Magnesium Magnesium

Metal X Logam X

Diagram 4.2/ Rajah 4.2 (i)

State one example of metal X. Nyatakan satu contoh logam X.

………….………….……………………………………………………………………………

(ii)

Explain your answer in e(i). You're Reading a Preview Terangkan jawapan anda di e(i).

Unlock full access with a free trial. ………….………….……………………………………………………………………………

Download With Free Trial (f)

(i)

Suggest a fruit that can be used to replace potato to make the bulb lights up. Cadangkan sejenis buah yang boleh digunakan untuk menggantikan kentang bagi menyalaka

………….………….……………………………………………………………………………  Sign up to vote on this title

 (ii)

Explain your answer in f(i). Terangkan jawapan anda di f(i).

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48

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[SBP 2016, No 3]

3. Diagram 3 shows the set-up of apparatus to purify the impure copper metal by using electrolysis proc Rajah 3 menunjukkan susunan alat radas untuk menulenkan logam kuprum tak tulen dengan menggun kaedah elektrolisis.

Diagram 3/ Rajah 3 (a) What is the function of cell Q? Apakah fungsi sel Q?

…………………………………………………………………………….……………………

You're Reading a Preview full access with a free trial. (b) Suggest a substance that can beUnlock used as Cadangkan bahan yang boleh digunakan sebagai


Electrode X/ Elektrod X: …………….………………………………………………………

Solution Y/ Larutan Y: …………....………………………………………………………… [2 m  Sign up to vote on this title (c) At cell Q, there are colourless gas bubbles produce at electrode  Useful X.  Not useful Pada sel Q, terdapat gelembung-gelembung gas tidak berwarna terbebas di elektrod X. i.

Write the half equation for the formation of the gas.

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49




(d) Alloy of copper is harder than pure copper. Aloi kuprum lebih keras daripada kuprum tulen. i.

Draw the arrangement of atoms in the alloy of copper. Lukis gambarajah susunan atom di dalam aloi kuprum.

[2 m ii. Explain the hardness of the alloy. Terangkan kekerasan aloi itu. …………………………………………………………………………………… ……………………………………………………………………………………

[2 m




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50


Chapter 8 : Salts [Pahang 2016, No 5] 5.

Diagram 5 shows a flowchart for the formation of precipitate V and solution W. Rajah 5 menunjukkan carta alir bagi penghasilan mendakan V dan larutan W. Lead(II) nitrate solution Larutan plumbum(II) nitrat Reaction M

Tindak balas M

Precipitate V Mendakan V

+

Solution Larutan

Sodium chloride solution Larutan natrium klorida Diagram 5/ Rajah 5 (a) Identify precipitate V and solution W. Kenal pasti mendakan V dan larutan W. Precipitate V :...……………………………………………………………………… Mendakan V


Unlock full access with a free trial. Solution W :……………………………………..…………………………………….

Larutan W


[2 marks

(b) (i) State the name of reaction M. Nyatakan nama bagi tindak balas M.

 Sign up to vote on this title ...………………………………………………………………………………….. [1 mark  Useful  Not useful

(ii) Write the chemical equation for reaction M.

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51 (d)



Describe briefly chemical test to verify the anion in solution W. Huraikan secara ringkas ujian kimia untuk menentusah anion dalam larutan W. ……………………………………………………………………………………….. ……………………………………………………………………………………….. ……………………………………………………………………………………….. ………………………………………………………………………………………..

[3 m

(d) If sodium chloride solution is replaced with potassium chloride solution of the same volume concentration, predict the mass of the precipitate formed.

Jika larutan natrium klorida digantikan dengan larutan kalium klorida yang sama isipad kepekatannya ramalkan jisim mendakan terbentuk. ..………………………………………………………………………………………..

[1 mar

[Perlis 2016, No 6] 6


Diagram 6 shows the conversion Unlock of lead(II) nitrate. full access with a free trial. Rajah 6 menunjukkan pertukaran bagi plumbum(II) nitrat.

Download With I Free Trial Lead(II) nitrate solution Larutan plumbum(II) nitrat

Na2CO3 solution Larutan Na2CO3

Solid salt P Pepejal garam P

Heated  IIon this Sign up to vote title Dipanaskan

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Solid Q Pepejal

+

Gas R

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52 (b)





Based on Diagram 6, identify salt P, solid Q and gas R. Berdasarkan Rajah 6, kenal pasti garam P, pepejal Q dan gas R. P: ……………………………………………….. Q: ………………………………………………. R: ……………………………………………….

(c)

State the colour of solid Q. Nyatakan warna pepejal Q. ………………………………………………………………………………….

(d)

(i)

Draw a labelled diagram for heating solid salt P in Reaction II. Lukiskan gambar rajah berlabel untuk pemanasan pepejal garam P dalam tindak balas II.



(ii)

Write a chemical equation for reaction (d)(i).Sign up to vote on this title Tuliskan persamaan kimia bagi tindak balas di Useful (d)(i).  Not useful



………………………………………………………………………………………

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53




[SBP 2016, No 4] 4

Diagram 4 shows three types of salt that is commonly found in school laboratories and widely used in various industries. Rajah 4 menunjukkan tiga jenis garam yang biasa dijumpai di makmal sekolah dan banyak digun dalam pelbagai industri.

Magnesium nitrate Magnesium nitrat

Lead(II) carbonate Plumbum(II) karbonat

Copper(II) sulphate Kuprum(II) sulfat

Diagram 4/ Rajah 4 Based on Diagram 4; Berdasarkan Rajah 4; a)

(i) State the name of one soluble salt. Nyatakan nama satu garam terlarutkan. You're Reading a Preview

…………………………………………………………………………………… Unlock full access with a free trial. [1 mark (ii)


Write the chemical formula of the salt. Tuliskan formula kimia garam tersebut.

……………………………………………………………………………………  Sign up to vote on this title (iii)

Useful  Not useful What is the colour of the solid salt mention in (a)(i)? Apakah warna garam pepejal yang dinyatakan dalam (a)(i)?

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54 (ii)





Write a balanced chemical equation to show the decomposition process occurred. Tuliskan persamaan kimia seimbang untuk menunjukkan proses penguraian yang berlaku.

…………………………………………………………………………………… [1 mark (iii)

Determine the maximum volume of gas released from the decomposition process. Tentukan isipadu maksimum gas yang terbebas daripada proses penguraian ini. [Relative atomic mass: Pb = 207; O = 16; C = 12; 1 mol of gas occupies 24 dm 3 at conditions] [ Jisim atom relatif : Pb = 207; O = 16; C = 12; 1 mol gas menempati 24 dm3 pada keadaan bilik ]

You're Reading a Preview c)

[2 mark

Describe briefly how you canUnlock verifyfull theaccess present anion in the sulphate salt. withof a free trial. Huraikan secara ringkas bagaimana anda dapat mengesahkan kehadiran anion di dala garam sulfat tersebut.


………………………………………………………………………………………… …………………………………………………………………………………………  Sign up to vote on this title …………………………………………………………………………………………  Useful  Not useful

[3 m

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55




Chapter 9 : Manufactured Substances In Industries [Terengganu 2016, No 1] 1

Diagram 1 show stages of chemical reactions that involved in the Process Y in producing of sulphuric acid. Rajah 1 menunjukkan peringkat-peringkat tindakbalas kimia yang terlibat dalam Proses Y ba penghasilan asid sulfurik. Stage 1 / Peringkat 1 : S + O2 → SO2 Stage 2 / Peringkat 2 : 2SO2

+

O2

→

2 SO3

Stage 3 / Peringkat 3 : SO3

+

………………

→

H2S2O7

Stage 4 / Peringkat 4 : H2S2O7

+

H2O

→

2H2SO4

Diagram 1 / Rajah 1

You're Reading a Preview (a)

(i)

State the name of process Y Unlock full access with a free trial. Nyatakan nama bagi proses Y.

Download With Free Trial ………………………………………………………………………………………

(ii)

Complete the chemical equation for Stage 3 in the Diagram 1. Lengkapkan persamaan kimia untuk Peringkat 3 dalam Rajah 1. Sign up to vote on this title

 (b)

(i)

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State one substance from Process Y that gives the effect to environment. Nyatakan satu bahan daripada Proses Y yang memberi kesan kepada alam sekita

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56 (c)





Fertilizer ammonium sulphate, (NH 4)2SO4 can be produced from sulphuric acid. Baja ammonium sulfat, (NH4)2SO4 boleh dihasilkan daripada asid sulfurik. (i)

State the chemical formula of substance that added to sulphuric acid to produced ammonium sulphate. Nyatakan formula kimia bahan yang ditambah kepada asid sulfurik untuk menghasilkan ammonium sulfat.

………………………………………………………………………………………

(ii)

Urea, (NH2)2CO and ammonium sulphate, (NH 4)2SO4 are two types of fertilizer. Calculate the percentage of nitrogen by mass in both fertilizers. Then, which subs is a better fertilizer for the growth of plants. [Relative atomic mass : H=1 ; C=12 ; N=14 ; O=16 ; S=32]

Urea, (NH2)2CO dan ammonium sulfat, (NH4)2SO4 merupakan dua jenis baja. Hitungkan peratus nitrogen terhadap jisim bagi kedua-dua baja tersebut. Seterus tentukan baja yang lebih baik bagi pertumbuhan tumbuhan. [ Jisim atom relatif : H=1 ; C=12 ; N=14 ; O=16 ; S=32]

% nitrogen by mass of urea % nitrogen terhadap jisim bagi urea

% nitrogen by mass of ammonium sulphate % nitrogen terhadap jisim bagi ammonium sulfa



Better fertilizer :  Sign up to vote on this title Baja terbaik : …………………………………………....................................  Useful  Not useful [3

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57




[Negeri Sembilan 2016, No 1] Diagram 1.1 shows one of the uses of synthetic polymer and its structural formula. Rajah 1.1 menunjukkan salah satu kegunaan polimer sintetik dan formula strukturnya.

Polymer X Polimer X Diagram 1.1/ Rajah 1.1 (a)

(i)

State the meaning of polymer. Nyatakan maksud polimer. ........................................................................................................................................

(ii)

State the name polymer X. Nyatakan nama polimer X.


........................................................................................................................................ Unlock full access with a free trial. (iii)

Download With Free Draw the structural formula of the monomer of Trial polymer X. Lukiskan formula struktur monomer bagi polimer X.


 (iv)

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State one advantage of using X as water pipes compared to metal pipes.

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58 (ii)





State one main characteristics of the borosilicate glass. Nyatakan satu sifat utama kaca borosilikat. ........................................................................................................................................

(iii)

State one use of the borosilicate glass in daily life. Nyatakan satu kegunaan kaca borosilikat di dalam kehidupan seharian. ........................................................................................................................................

(c)

Diagram 1.2 shows a helmet that is wear by motorist for their safety. Rajah 1.2 menunjukkan sebuah topi keledar yang digunakan oleh penunggang motosikal unt keselamatan mereka.

Material Y Bahan Y Diagram 1.2/ Rajah 1.2 Material Y is made up from the mixture of glass and plastic. Bahan Y diperbuat daripada campuran kaca dana plastik. You're Reading Preview (i)

Unlock State the name of material Y. full access with a free trial. Nyatakan nama bahan Y.


........................................................................................................................................

(ii)

State one advantage of material Y compared to borosilicate glass.  Sign up to vote on this title Nyatakan kelebihan bahan Y berbanding kaca borosilikat.  Useful  Not useful ........................................................................................................................................

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59

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[MRSM 2016, No 2] 2

Diagram 2.1 shows three examples of manufactured substances in industry Rajah 2.1 menunjukkan tiga contoh bahan buatan untuk industri.

Diagram 2.1/ Rajah 2.1 (a)

R is an example of alloy. What is the meaning of alloy? R merupakan contoh aloi. Apakah maksud aloi?

………………………………………………………………………………………………..…

……………………………………………………………………………………………………

(b)


Name the major component for the following substances: Namakan komponen utama untuk bahan-bahan berikut: Unlock full access with a free trial. Q: ………….…………………………….…

R : …………….………..………….…


(c)

Diagram 2.2 shows a part of the structure of P. Rajah 2.2 menunjukkan sebahagian struktur P.


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60

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Bahan P selalu digunakan sebagai paip air. Nyatakan satu kelebihan paip jenis ini berbanding dengan paip besi.

………….………….………………………………………………………………………

[Pulau Pinang 2016, No 1] 1. Diagram 1 shows the production of compound M. Rajah 1 menunjukkan penghasilan bahan M. Process X Proses X

Sulphuric acid Asid sulfurik Compound M Bahan M

Haber Process Proses Haber

Compound L Bahan L Diagram 1/ Rajah 1

(a) (i) Name process X. Namakan proses X.

………………………………………………………………………………………………



(ii) In process X, the catalyst and high temperature is used to increase the rate of reaction. Sta the catalyst and the temperature used. Download With Freedigunakan Trial Dalam proses X, mangkin dan suhu yang tinggi untuk meningkatkan kadar ti balas. Nyatakan mangkin dan suhu yang digunakan.

Catalyst / Mangkin : ........................................ Temperature / Suhu : ................................  [2 m Sign up to vote on this title

Not useful  Usefulintowater (iii) In Process X, sulphur trioxide gas is not directly dissolved to form liquid sulp acid. Explain why. Dalam Proses X, gas sulfur trioksida tidak terus dilarutkan ke dalam air untuk menghas

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61




(ii) Compound L is produced when nitrogen gas reacts with hydrogen gas. What is the ratio o nitrogen gas and hydrogen gas reacted? Bahan L terhasil apabila gas nitrogen bertindak balas dengan gas hidrogen. Apakah nisb gas nitrogen dan gas hidrogen yang bertindak balas?

………………………………………………………………………………………………

(c) (i) Sulphuric acid reacts with compound L to produce compound M. Name compound M. Asid sulfurik bertindak balas dengan bahan L untuk menghasilkan bahan M. Namakan bahan M.

………………………………………………………………………………………………

(ii) State one of the use of compound M. Nyatakan satu kegunaan bahan M.

………………………………………………………………………………………………




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62

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Chapter 10 : Rate of Reaction [Terengganu 2016, No 4] 4

A student carried out two experiments to investigate the factor that affects the rate of reaction. Table 4 shows the results of the experiments. Seorang pelajar telah menjalankan dua eksperimen untuk menyiasat faktor-faktor yang menpengaruhi kadar sesuatu tindak balas. Jadual 4 menunjukkan keputusan bagi eksperimeneksperimen tersebut .

Experiment Eksperimen

Diagram Rajah

Volume of gas colle when magnesium re completely /cm Isipadu gas yan dikumpul apabil magnesium lengk bertindak balas

m g of magnesium ribbon m g pita magnesium I

50

5 minutes 5 minit

You're Reading a Preview Unlock full access with a free trial. 0.5 mol dm-3 hydrochloric acid in excess -3 asid hidroklorik 0.5 mol dm berlebihan

Download m g of magnesium powder With Free Trial m g serbuk magnesium

II

3 minutes Sign up to vote on this title Useful  Not useful 3 minit 

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63 (b)

Rate of Reaction




Write a chemical equation for the reaction between magnesium and hydrochloric acid. Tuliskan persamaan kimia bagi tindak balas antara magnesium dengan asid hidroklorik

……………………………………………………………………………………............ [2 (c)

State the factor that affects the rate of reaction in this experiment. Nyatakan faktor yang yang mempengaruhi mempengaruhi kadar kadar tindak balas balas dalam eksperime eksperimen n ini :

……………………………………………………………………………………............

(d)

(i)

From the information in Table 4, calculate the average rate of reaction for Experim I and Experiment II. Daripada maklumat maklumat dalam Jadual 4 hitungkan kadar tindak balas purata untuk Eksperimen I dan Eksperiment Eksperiment II.

[2 (ii)

Rate of reaction in Experiment II is higher than Experiment I. By referring to the Collision Theory, explain why there are differences in the rate reaction in both experiments. Kadar tindak balas dalam Eksperimen II lebih II lebih tinggi daripada Eksperimen I. Dengan merujuk merujuk kepada kepada Teori Teori Perlanggaran, Perlanggaran, terangkan terangkan mengapa mengapa terdapat terdapat  perb Sign up to vote on this title dalam kadar tindak balas bagi kedua-dua eksperimen itu. itu.  Useful  Not useful ……………………………………………………………………………………..

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[MRSM 2016, No 5] 5

An experiment is carried out to investigate the rate of reaction of magnesium with sulphuric aci magnesium powder powder is added to 20 cm 3 of 0.1 mol dm -3 sulphuric acid. Table 5.1 shows the volume of ga at intervals of 30 seconds. Satu eksperimen dijalankan untuk mengkaji kadar tindak balas antara magnesium dengan asid sulfu magnesium berlebihan ditambahkan kepada 20 cm 3 asid sulfurik 0.1 mol dm -3. Jadual 5.1 menunjukkan 5.1 menunjukkan isipadu gas yang terkumpul pada setiap sela masa 30 saat. Time/s Masa/s Volume of gas/cm3 Isipadu gas/cm gas/cm3

0

30

60

90

120

150

180

210

0.00

12.00

22.00

31.00

38.00

42.00

44.00

45.00

Table 5.1/ Jadual Jadual 5.1 (a) Name the gas released released from the the above reaction. Namakan gas yang terbebas terbebas daripada tindak balas balas di atas.

………….………….…………………………………………………………………………….… (b)

Based on Table 5.1, plot a graph of the volume of gas collected against time. Berdasarkan Berdasarkan Jadual Jadual 5.1, plotkan plotkan graf isipadu gas yang terkumpul terkumpul melawan melawan masa.

(c)

Based on graph plotted in 5(b), calculate: Berdasarkan Berdasarkan pada graf yang yang diplotkan di 5(b), hitung hitung : (i)

the rate of reaction at 120 s. kadar tindak balas pada masa 120 s.


 (ii)

the overall rate of reaction.

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65

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66 (d)





Another experiment is carried out to investigate the factors affecting the rate of reaction. Diagram 5. the results of the experiment. Curve L represents the result of the experiment using excess mag powder and 50 cm3 of 1.0 mol dm -3 hydrochloric acid. Suatu eksperimen berasingan dijalankan untuk mengkaji faktor-faktor yang mempengaruhi ka balas. Rajah 5.2 menunjukkan keputusan eksperimen. Lengkung L mewakili keputusan eksper menggunakan serbuk magnesium berlebihan dan 50 cm 3 asid hidroklorik 1.0 mol dm -3. Volume of gas/cm3 Isipadu gas/cm3

Time/s Masa/s Diagram 5.2/ Rajah 5.2 (i)

Suggest the factor that influence the rate of reaction to obtain the curve K. You're Reading a Preview Cadangkan faktor yang mempengaruhi kadar tindak balas untuk memperoleh lengkung K.

Unlock full access with a free trial. ………….………….……………………………………………………………………………


Rate of reaction of curve K is higher than L. Explain your answer based on the Collision The Kadar tindak balas lengkung K lebih tinggi dari L. Terangkan jawapan anda berdasarkan T Perlanggaran.  Sign up to vote on this title ………………………………………………………………………………………………..…  Useful  Not useful …………………………………………………………………………………………………

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67




Chapter 11 : Carbon Compound [Pahang 2016, No 6] 6.

Diagram 6 shows the flow chart for the conversion of carbon compound. Rajah 6 menunjukkan carta alir bagi penukaran sebatian karbon. Gas X + water Gas X + air Combustion Pembakaran

Compund R Sebatian R

Dehydration Pendehidratan

I

Propanol, C3H8O Propanol

Propanoic acid Asid propanoik

Diagram 6/ Rajah 6 Based on Diagram 6, Berdasarkan Rajah 6, (a) State the name of gas X. Nyatakan nama gas X.


.......................................................................................................................................

Download With Free Trial (b)

(i) State the functional group of propanol Nyatakan kumpulan berfungsi bagi propanol.

 Sign up to vote on this title ............................................................................................................................... Useful Not useful



(ii) Draw the structural formula for isomers of propanol

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68

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(c) (i) State the process at I Nyatakan proses di I

..............................................................................................................................

[1 mark (ii) What is the substance that needs to be added in process I to produce propanoic acid?

Apakah bahan yang perlu ditambahkan dalam proses I untuk menghasilkan asid propanoik? ..............................................................................................................................

[1 mark (d)

(i) State the name of compound R Nyatakan nama bagi sebatian R ...............................................................................................................................

[1 mark (ii) Draw a labelled diagram how the dehydration reaction can be carried out in the laboratory.

Lukis rajah berlabel bagaimana tindak balas pendehidratan boleh dijalankan dalam You're Reading a Preview makmal. Unlock full access with a free trial.



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69

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mencukupi. Aliya terfikir untuk menggunakan perisa nanas untuk menghasilkan biskut nanas. Formula kimia bagi perisa nanas adalah C 3 H 7 COOC 2 H 5. Bol anda membantu Aliya untuk menamakan dua sebatian karbon yang digunakan menghasilkan perisa nanas? .....................................................................................................................................

[2 marks

[Negeri Sembilan 2016, No 6] 6

Table 6 shows the structural formulae of three carbon compounds. Jadual 6 menunjukkan formula struktur bagi tiga sebatian karbon. Substance Bahan

Structural Formula Formula Struktur

Name Name

......................................................

X

Y

......................................................



Z


.......................................................

Table 6/ Jadual 6 Sign up to vote on this title (a)

What is the meaning of carbon compounds? Apakah maksud sebatian karbon?

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(d)

Substance Y can be converted to substance Z through dehydration reaction. Draw a labelled diagram how the reaction can be carried out in the school laboratory. Bahan Y boleh ditukarkan kepada bahan Z melalui tindak balas pendehidratan. Lukiskan gambar rajah berlabel susunan radas yang digunakan untuk menjalankan tindak di makmal sekolah.

(e)

Diagram 6 shows the apparatus set-up for the reaction between bromine water with X and Z. Rajah 6 menunjukkan susunan radas bagi tindak balas antara air bromin dengan X dan

X

Z

You're Reading a Preview Unlock full access withBromine a free trial.water

Air bromin Download With Free Trial Diagram 6/ Rajah 6 (i)

State the observations for both test tube. Nyatakan pemerhatian bagi kedua-dua tindak balas. Sign up to vote on this title

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 Useful  Not useful ..........................................................................................................................................

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[Perlis 2016, No 4] 4

Diagram 4 shows a flow chart of conversion of compound P to compound Q and R. Rajah 4 menunjukkan carta alir bagi penukaran sebatian P kepada sebatian Q dan R.

Compound R Sebatian R

Porcelain chips Serpihan porselin Hot/panas

Compound P Sebatian P C4H9OH

Reagent X Reagen X

Compoun Sebatian

Diagram 4/ Rajah 4 Based on Diagram 4, answer the following questions: Berdasarkan Rajah 4, jawab soalan-soalan berikut: (a)

(i)

Write the general formula of the homologous series of compound P. Tuliskan formula umum bagi siri homolog sebatian P. ........................................................................................................................

[1 mar (ii)

State the functional group for compound P. Nyatakan kumpulan berfungsi bagi sebatian P.


........................................................................................................................ Unlock full access with a free trial.

(b)

[1 mar

When bromine water is added to compound R, the brown bromine water is decolourised Download With Free Trial Apabila air bromin ditambah kepada sebatian R, warna perang air bromin diyahwarna (i)

Name a compound R. Namakan sebatian R.

 Sign up to vote on this title ..........................................................................................................................  Useful  Not useful

[1 mark]

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72 (c)

(i)


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When the mixture of compound P, reagent X and concentrated sulfuric acid is gent heated it will produced compound Q. Compound Q also turns the colour of blu litmus paper to red. Apabila campuran sebatian P, reagen X dan asid sulfurik dipanaskan seca perlahan-lahan ia akan menghasilkan sebatian Q. Sebatian Q juga dap menukarkan warna kertas litmus biru kepada merah. Name the Reagent X Namakan Reagent X ..........................................................................................................................

[1 mar (ii)

State the colour change of the reagent at 4(c)(i) during the reaction. Nyatakan perubahan warna bagi reagen di 4(c)(i) semasa tindakbalas berlaku. ..........................................................................................................................

[1 mar

(d)

(i)

Propanic acid react with compound P with the presence of the concentrated sulphuric acid to form a compound. Asid propanoik bertindak balas dengan sebatian P dengan kehadiran asid sulfur pekat bagi menghasilkan suatu sebatian.


Name the compound formed. Unlock full access with a free trial. Namakan sebatian yang terbentuk.

Download With Free Trial ……………………………………………………….………………………....... [1 mar (ii)

Write a balanced chemical reaction at 4(d)(i) Tuliskan persamaan kimia yang seimbang bagi tindakbalas di 4(d)(i)  Sign up to vote on this title

 Useful  Not useful …………….………………………………….………………………….........… [1 mar

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[2 mark

[Pulau Pinang 2016, No 5] 5. Diagram 5.1 shows a preparation of ethanol and some of the reactions involving ethanol. Rajah 5.1 menunjukkan penyediaan etanol dan beberapa tindak balas yang melibatkan etanol.

Glucose Glukosa

Process 1 Proses 1

Ethanol Etanol

+ Acidified potassium manganate (VII) solution. + Larutan kalium manganat(VII) berasid Compound R Sebatian R

You're Reading a Preview Dehydration

Unlock full access with a free trial. Pendehidratan

Gas X Download With Free Trial Diagram 5.1/ Rajah 5.1

(a) Ethanol can be prepared from glucose in a laboratory through process 1. Name process 1.  prose Etanol boleh disediakan daripada glukosa dalam makmal proses 1.title Namakan Signmelalui up to vote on this

 Useful  Not useful …...…..…………………………………………………………………………………………

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(c) Compound R is produced through oxidation of ethanol in the presence of acidified potassium manganate (VII) solution. Sebatian R terhasil daripada tindak balas pengoksidaan ke atas etanol dengan kehadiran la kalium manganat(VII) berasid. (i) Name compound R. Namakan sebatian R.

..…..…………………………………………………………………………………………

(ii) Draw the structural formula of compound R. Lukis formula struktur bagi sebatian R.

(d) Diagram 5.2 shows the compound S prepared in the laboratory through the reaction between ethanol and compound R. Rajah 5.2 menunjukkan sebatian S yang disediakan dalam makmal melalui tindak balas ant etanol dengan sebatian R.


Thermometer Termometer Unlock full access with a free trial.

Download With Free Trial Liebig Condenser Kondenser Liebig

Water bath Kukus Air Compound S Sebatian S


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(iii) Write a chemical equation for this reaction. Tulis persamaan kimia untuk tindak balas ini.

…...…..…………………………………………………………………………………… [2 m (iv) State one use of compound S in everyday life. Nyatakan satu kegunaan sebatian S dalam kehidupan seharian.

………..……………………………………………………………………………………

[MRSM 2016, No 2(d)] (d)

Diagram 2.3 shows the conversion of glucose to another substance. Rajah 2.3 menunjukkan penukaran glukosa kepada bahan lain.


Download With Free Trial Diagram 2.3/ Rajah 2.3 Based on Diagram 2.3, Berdasarkan Rajah 2.3,


 (i)

name Reaction I. namakan Tindak balas I.

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76 (iv)





state a substance that can be used to replace porous pot chips in Reaction II. nyatakan satu bahan yang boleh menggantikan serpihan pasu berliang dalam Tindak ba

………….………….………………………………………………………………………

[SBP 2016, No 5] 5

Diagram 5 shows the structural formulae of compound P and compound Q. Both compound P compound Q are isomers. Rajah 5 menunjukkan formula struktur bagi sebatian P dan sebatian Q. Kedua-dua sebatian sebatian Q adalah isomer.

Diagram 5/ Rajah 5 a)

(i) State the meaning of isomer. You're Reading a Preview Nyatakan maksud isomer.


…………………………………………………………………………………. [1 mark Download With Free Trial (ii) State the name of the compounds by using IUPAC nomenclature. Nyatakan nama sebatian-sebatian itu dengan menggunakan penamaan IUPAC. Sign up to vote on this title



Compound P: ………………………………………………………………….  Useful  Not useful Sebatian P

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77 (i)





Write a balance chemical equation for the reaction involve. Tuliskan persamaan seimbang bagi tindak balas yang terlibat.

…………………………………………………………………………………. [2 mark (ii)

Describe briefly a confirmatory test for the gas released. Huraikan dengan ringkas ujian pengesahan bagi gas yang terbebas. ………………………………………………………………………………….

…………………………………………………………………………………. [2 mark c)

Compound Q undergoes a reaction to form compound R. Compound R contains 85.7% ca and the rest is hydrogen. Find the empirical formula of the compound R. Sebatian Q mengalami tindak balas membentuk sebatian R . Sebatian R mengandungi karbon dan selebihnya adalah hydrogen. Tentukan formula empirik bagi sebatian R . [Relative atomic mass: H =1, C =12] [ Jisim atom relatif : H =1, C =12]



[Kedah 2016, No 5] 5.


 Useful  Not useful Diagram 5.1 shows the structural formula of monomer of natural rubber. Rajah 5.1 menunujukkan formula struktur bagi monomer getah asli.



[3 mark

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78 (b)

(i)





The monomers react each other to form a long-chain molecule, P through process Name process Q. Monomer bertindak balas antara satu sama lain untuk membentuk satu molekul ra panjang, P melalui prosesQ. Namakan proses Q.

[1 m (ii)

Draw the structural formula of P. Lukiskan formula struktur bagi P.

[1 m (c)

An experiment is carried out to studythe effect of solution A and solution B when added latex. Table 5 shows the results of the experiment. Suatu eksperimen telah dijalankan untuk mengkaji kesan larutan A dan larutan B apa ditambah kepada lateks. Jadual 5menunjukkan keputusan eksperimen itu. Mixture Observation Campuran Pemerhatian Latex + solution A Latex coagulate Reading a Preview Lateks + larutanYou're A Getah menggumpal full access with a freedoes trial. not coagulate Latex + solution Unlock B Latex Lateks + larutan B Getah tidak menggumpal

DownloadTable With5/Free Trial Jadual 5 Based on Table 5, Berdasarkan Jadual 5, (i) Name the solutions. Namakan larutan-larutan tersebut. Solution A: Larutan A :


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79 (d)





Vulcanisation is a process used to enhance the quality of natural rubber. Diagram 5.2 below shows two products K and L made of rubber. Pemvulkanan adalah satu proses dijalankan untuk meningkatkan kualiti getah. Rajah 5.2 menunjukkan dua produk K dan L yang dihasilkan daripada getah.

Material K Bahan K

Material L Bahan L Diagram 5.2/ Rajah 5.2

(i)

Choose the product that is made of vulcanised rubber. Pilih produk yang dibuat menggunakan getah tervulkan.



(ii)

[1 m

With Free Trial Explain your choice inDownload term of their properties. Terangkan pilihan anda dari segi sifatnya.


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[2 ma

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80


Chapter 12 : Oxidation and Reduction [Terengganu 2016, No 6] 6

(a)

Table 6.1 shows the set-up of apparatus and observation for two experiments, I and II. Jadual 6.1 menunjukkan susunan radas dan pemerhatian bagi dua eksperimen, I dan

Experiment Eksperimen

I

II

Copper(II) sulphate solution Larutan kuprum(II) sulfat

Magnesium sulphate soluti Larutan magnesium sulfat

Test tube Tabung uji Magnesium powder Serbuk magnesium

Observation Pemerhatian

Brown solid formed. Blue solution becomes paler. Pepejal perang terbentuk. Larutan biru menjadi pucat.

Copper powder Serbuk kuprum

No change. Tiada perubahan.

Table 6.1 / Jadual 6.1

You're Reading a Preview Based on Table 6.1, Unlock full access with a free trial. Berdasarkan Jadual 6.1, (i)

With Free Trial State the name of theDownload brown solid formed. Nyatakan nama bagi pepejal perang yang terbentuk. .......................................................................................................................  Sign up to vote on this title

(ii)

 Useful  Not useful Give a reason for the observation on the solution in Experiment I. Berikan satu sebab bagi pemerhatian ke atas larutan dalam Eksperimen I.

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81 (iv)





Write the chemical equation for the reaction occurred. Tuliskan persamaan kimia bagi tindak balas yang berlaku . .......................................................................................................................

(v)

Explain the observation in Experiment II Terangkan pemerhatian dalam Eksperimen II. ....................................................................................................................... ....................................................................................................................... [2

(b)

Iron is a metal that rusts easily. Besi adalah sejenis logam yang mudah berkarat . (i)

State the conditions for the rusting of iron Nyatakan syarat-syarat untuk pengaratan besi. ......................................................................................................................

(ii)

Draw a labelled diagram to show how the conditions for the rusting of iron involv You're Reading a Preview ionization of iron and the flow of electron. Lukis satu gambar rajah berlabel untuk menunjukkan bagaimana syarat untuk Unlock full access with a free trial. pengaratan melibatkan pengionan besi dan pengaliran elektron.



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82




[Perlis 2016, No 5] 5

Diagram 5 shows the set up of the apparatus of an experiment to investigate the transfer o electrons at a distance. Solution X is an oxidising agent and turns colour from purple to colourle after a few minutes reacted. Rajah 5 menunjukkan susunan radas eksperimen bagi mengkaji pemindahan elektron pada sa jarak. Larutan X ialah agen pengoksidaan dan bertukar warna dari ungu kepada tidak berwar selepas beberapa minit bertindak balas.

Carbon Karbon

Carbon Karbon Potassium iodide solution Larutan kalium iodida Dilute sulphuric acid Asid sulfurik cair Diagram 5/ Rajah 5

The overall ionic equation that occurs at electrodes A and B is, Persamaan ion keseluruhan bagi tindak balas yang berlaku pada elektod A dan B adalah,


2MnO4(a)

(b)

+

Name the solution X. Namakan larutan X.

16H+ +

10I- → 2Mn2+


+

8H2O + 5I2


…………………………………………………………………………………….. [1 mar  Sign up- to vote on this title Calculate the oxidation number of manganese in MnO 4 ion. Useful  4Not Hitungkan nombor pengoksidaan bagi mangan  dalam ion MnO . useful

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83 (i)



State the observation? Nyatakan pemerhatian? ……………………………………………………………………………... [1 mark]

(ii)

Write the half equation for the reaction. Tulis setengah persamaan bagi tindakbalas. ....................................................................................................................... [2 marks]

(iii)

Explain the reaction that occurs in term of transfer of electron. Terangkan tindak balas yang berlaku dari segi pemindahan elektron. ....................................................................................................................... [1 mark]

(e)

State the function of the dilute sulphuric acid in this experiment. Nyatakan fungsi bagi asid sulfurik cair dalam eksperimen ini. ................................................................................................................................... [1 mark]

(f)

You're a Preview In other experiment you are givenReading zinc strip, copper strip, copper (II) sulphate solution and all apparatus required. Unlock full access with a free trial. Draw a labelled diagram to show another set up of apparatus to investigate the transfer electron at a distance. In your diagram show the direction of electron flow. With Free Trial Di dalam eksperimen lainDownload anda dibekalkan dengan kepingan zink, kepingan kuprum, larutan kuprum(II) sulfat dan semua radas yang diperlukan. Lukiskan satu gambarajah berlabel untuk menunjukkan susunan radas bagi menyiasat pemindahan elektron pada satu jarak. Tunjukkan arah pergerakan elektron pada raja anda.  Sign up to vote on this title

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84




[Kedah 2016, No 6] 6.

Diagram 6.1 shows the apparatus set-up to investigate the transfer of electrons at a distance in a reaction. Rajah 6.1menunjukkan susunan radas untuk mengkaji pemindahan elektron pada suatu jarak tindak balas redoks.

Carbon electrode Y

Carbon electrode X

Elektrod karbonY

Elektrod karbonX

Acidified potassium dichromate (VI) s

Iron(II) sulphate solution

Larutan kalium dikromat (VI) berasid

Larutan ferum(II)sulfat

Dilute sulphuric acid Asid sulfurik cair

Diagram 6.1/ Rajah 6.1 Based on Diagram 6.1, Berdasarkan Rajah 6.1, (a)


State the function of diluteUnlock sulphuric acid. full access with a free trial. Nyatakan fungsi asid sulfurik cair.

Download With Free Trial ...................................................................................................................................

(b)

The following equation shows the reaction that takes place at carbon electrode Y.  Persamaanberikutmenunjukkantindakbalas yangberlakupadaelektrod karbon Y. Sign up to vote on this title Cr 2O72-(i)

+

14H+

useful + 6e → Useful 2Cr 3+ +Not7H 2O

State the change ofoxidation number for chromium.

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85 (i)





write the half equation for the reaction tuliskan persamaan setengah bagi tindak balas itu.

...................................................................................................................................

(ii)

describe briefly a chemical test to identify the cation formed in (c)(i) huraikan secara ringkas ujian kimia untuk mengenal pasti kation yang terben c(i). ...................................................................................................................................

...................................................................................................................................

(d)

Table 6 shows the results of four sets of experiment to determine the position of hydrogen reactivity series. Jadual 6 menunjukkan keputusan bagi empat set eksperimen untuk mengkaji kedu hidrogen dalam siri kereaktifan. Set Set I

II

III

IV

Reaction Tindak balas

Observation Pemerhatian Burns quickly with bright flame Hydrogen + oxide P Terbakar cepat dengan nyalaan terang You're Reading a Preview Hidrogen + oksida P Black powder turns to brown Serbuk hitam bertukar menjadi perang Unlock full access with a free trial. Burns with bright flame Hydrogen + oxide Q Terbakar dengan nyalaan terang Free Trial HidrogenDownload + oksida QWithYellow powder turns to shiny grey Serbuk kuning bertukar menjadi kelabu berki Hydrogen + oxide R No change Hidrogen + oksida R Tiada perubahan  Glow dimly Sign up to vote on this title Hydrogen + oxide S Berbara malap Useful turns Not useful powder  to Hidrogen + oksida S Brown shiny grey Serbuk perang bertukar menjadi kelabu berk Table 6/ Jadual 6

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86 (ii)



Based on experiment I, identify P. State the role of oxide P in term of redox reactio Berdasarkan Berdasarkan eksperimen eksperimen I, kenal pastikan P. Nyatakan peranan oksida oksida P dari segi balas redoks. ...................................................................................................................................

...................................................................................................................................

(iii)

Diagram 6.2 for the apparatus set-up used to determine the position of hydro reactivity series. Complete the apparatus set-up in Diagram 6.2. Rajah 6.2 6.2 bagi susunan radas yang digunakan untuk menentukan kedudukan hi dalam siri kereaktifan. Lengkapkan susunan radas dalam Rajah 6.2.

Oxide P Oksida P H2

Heat Haba

Anhydrous calcium chloride Kalsium klorida kontang Sign up to vote on this title

Useful 6.2 Not useful Diagram 6.2/ Rajah 6.2/  Rajah

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87




[Pulau Pinang 2016, No 6] 6. Diagram 6 shows an experiment that involves the transfer of electrons through a distance. The reactions that occur is a redox reaction. Rajah 6 menunjukkan menunjukkan satu satu eksperimen eksperimen yang yang melibatkan melibatkan pemindahan pemindahan elektron elektron pada pada suatu jarak. jarak. Tindak balas yang berlaku ialah tindak balas redoks

Diagram 6/ Rajah Rajah 6 (a) What is a redox reaction? reaction ? Apakah itu tindak balas balas redoks? redoks?

…...…..…………………………………………………………………………………………

(b) (i) Write the half equation for the reaction occurred at electrode P and Q. Tuliskan persamaan setengah bagi tindak balas yang berlaku di elektrod P dan Q. Electrode P / Elektr / Elektrod od P : …………………… ……………………………………… ………………………… ……… Electrode Q / Q / Elektrod Elektrod Q: ………………………… …………………………………………… …………………… … Sign up to vote on this title



Not useful  Useful experiment. (ii) Write a complete ionic equation for the reaction occurred in this Tuliskan satu persamaan ion bagi tindak balas yang berlaku dalam eksperimen ini.

[2 m

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88




(e) Identify the reducing agent. Kenal pasti pasti agen penurunan. penurunan.

…...…..…………………………………………………………………………………………

(f) Suggest a chemical test to identify the product formed at electrode Q Cadangkan satu ujian kimia untuk mengenal pasti hasil yang terbentuk di elektrod Q.

…...…..……………………………………………………………………………………………

…...…..…………………………………………………………………………………………… [2 m (g) Suggest another substance that can be used to replace the oxidising agent in Diagram 6. Cadangkan satu bahan lain yang dapat digunakan untuk menggantikan agen pengoksidaan dalam Rajah 6.

…...…..…………………………………………………………………………………………

[SBP 2016, No 6] 6

Diagram 6 shows the apparatus set-up constructed by a student. As the circuit is completed, the ne of galvanometer deflected. Rajah 6 menunjukkan susunan radas yang dibina oleh seorang pelajar. Apabila litar dilengkapkan, dilengkapkan, jarum galvanometer galvanometer telah terpesong.


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89 (ii)





State the role of bromine water. Nyatakan peranan air bromin.

………………………………………………………………………………….………

(iii)

Explain your answer in (a)(ii). Terangkan jawapan anda di (a)(ii).

……………………………………………………………………………………….…

………………………………………………………………………………………..… [2 m (b)

On Diagram 6, draw the arrows to show the direction of electron flow. Pada Rajah 6 , lukiskan anak panah bagi menunjukkan arah pengaliran elektron.

[1 m

(c) The colour of iron(II) sulphate solution change from green to brown. Describe briefly a chemica to identify the cation present. Warna larutan ferum(II) sulfat berubah dari hijau ke perang. Huraikan dengan ringkas ujian untuk mengenalpasti kation yang hadir.

You're Reading a Preview ………………………………………………………………………………................................. Unlock full access with a free trial.

………………………………………………………………………………................................. [2 m


(d) Write the overall ionic equation for the reaction occured. Tuliskan persamaan ion keseluruhan bagi tindak balas yang berlaku.

 ………………………………………………………………………………................................. Sign up to vote on this title [2 m  Useful  Not useful

(e)

Draw a labelled diagram for the apparatus set-up used to show the electron transfer at a distan

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90




[MRSM 2016, No 6] 6

Diagram 6.1 shows a match head has been struck. Rajah 6.1 menunjukkan satu kepala mancis yang telah digeserkan.

Diagram 6.1/ Rajah 6.1 The chemical equation for the reaction is as follow: Persamaan kimia untuk tindak balas adalah seperti berikut: 3 P4 + 10 KClO3  3 P4O10 + 10 KCl (a)

(i)

Determine the oxidation number of chlorine, Cl in KClO 3. Tentukan nombor pengoksidaan bagi klorin, Cl dalam KClO 3.


………….………….………………………………………………………………………… Unlock full access with a free trial.

(ii)

State the substance that undergoes oxidation. Download With Free Trial Nyatakan bahan yang mengalami pengoksidaan.

………….………….…………………………………………………………………………

(iii)

Sign up to vote on this title Explain the answer in (a)(ii) in terms of the change in theUseful oxidation number.   Not useful Terangkan jawapan di (a)(ii) dari segi perubahan nombor pengoksidaan.

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91




Based on Diagram 6.2, Berdasarkan Rajah 6.2, (i)

State the colour of copper(II) sulphate solution in test tube I. Nyatakan warna larutan kuprum(II) sulfat di dalam tabung uji I.

………….………….…………………………………………………………………………

(ii)

Based on Diagram 6.2, explain the change in colour of copper(II) sulphate solution. Berdasarkan Rajah 6.2, terangkan perubahan warna larutan kuprum(II) sulfat.

………………………………………………………………………………………………..

…………………………………………………………………………………………………

(iii)

Suggest a suitable metal G. Write the ionic equation for the reaction in Diagram 6.2. Cadangkan logam G yang sesuai. Tuliskan persamaan ion bagi tindak balas dalam Rajah 6

………………………………………………………………………………………………..

…………………………………………………………………………………………………

You're Reading a Preview (c)

Diagram 6.3 shows zinc plate attached to the hull of the ship to prevent rusting. Unlock fulldilekatkan access with pada a free trial. Rajah 6.3 menunjukkan kepingan zink yang badan kapal bagi mengelakkan peng



 Zinc plate

Useful

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92 (ii)



Write the half equation for the reaction in 6 (c)(i). Tulis setengah persamaan bagi tindak balas di 6(c)(i).

………….………….…………………………………………………………………………

Chapter 13 : Chemical For Consumer [Perlis 2016, No 1] 1.

Table 1 shows information of the different types of medicine P, Q and R. Jadual 1 menunjukkan maklumat tentang jenis-jenis ubat berbeza P, Q dan R. Type of medicine Jenis ubatan Analgesic Analgesik Antibiotic Antibiotik R

(a)

(i)

Function Fungsi

To relief pain Mengurangkan kesakitan ………………………………………… To reduce tension and anxiety Mengurangkan tekanan dan kegelisahan Table 1/ Jadual 1

Example Contoh Aspirin Aspirin Penicilin Penisilin Tranquilizer Tranquilizer

State the type of medicine R. You're Reading a Preview Nyatakan jenis ubat R. Unlock full access with a free trial.

.....................................................................................................................

[1 mark


What is the function of penicillin. Apakah fungsi penisilin.  ..................................................................................................................... Sign up to vote on this title

 (iii)

Useful

 Not useful

[1 mark

En. Azlan who has gastric problems is suffering toothache for a few days.

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93 (i)



Name soap X. Namakan sabun X.

.............................................................................................................................. [1 mark (ii)

Diagram 1.2 shows the structural formula of a soap anion. Rajah 1.2 menunjukkan struktur formula bagi suatu anion sabun.

CH3

CH2

CH2

CH2

CH2 CH2 CH2

CH2

CH2

CH2

CH2

CH2 CH2

CH2

CH2

CH2

CH2

C

O-

O Part P Bahagian P

Part Q Bahagian Q

Diagram 1.2/ Rajah 1.2 State the property of part P and Q of soap anion. You're Reading a Preview Nyatakan sifat bagi bahagian P dan Q dalam anion sabun. Unlock full access with a free trial. ..............................................................................................................................

…………………………………………………………………………………… Download With Free Trial [2 mark (c)

Diagram 1.3 shows the label on a pack of food. Rajah 1.3 menunjukkan label bagi satu bungkusan makanan. Sign up to vote on this title

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Analisis Bertopik Percubaan Kimia SPM 2016

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