-21.
Which ofthe following apparatus/instruments is most suitable for obtaining both cooking oil and water from a- mixture of the two? (A) (B)
(C) (D)
2.
II. III. IV.
(A) (B) (C) (D)
Protons' and neutrons are found in the-nucleus. Electrons can be found anywhere outside the nucleus. %, The number of protons always equa l s th e number of neutrons. The number of protons always equals the number of electrons.
III.
(A) (B) (C) (D)
6.
I and III I and IV II and III III and IV
Which ofthe following compounds may be conveniently prepared by precipitation? Barium sulphate Sodium sulphate Copper (II) sulphate Magnesium nitrate
In descending Group VI I ofthe periodic table, which TWO ofthe fol lowing trends occur? I. II.
Filter funnel Separating funnel Fractionating column Volumetric flask
Which TWO of the following statements are true about the arrangement of electrons, protons and neutrons in an atom?' 1.
3.
5,
I V.
The reactivity of the elements increases
(A) (B) (C) (D)
I and Ill I and IV II and III II and IV
Dilute sulphuric acid is classified as a strong acid because it (A)
produces 2 moles of hydrogen ions per mole of acid
(B)
requires 2 moles ofsodium hydroxide for neutralisation
(C)
is almost completely ionised and is a good conductor of electricity ionises to give both hydrogen ions and sulphate ions.
(D)
7.
When a saturated solution of copper (II) sulphate is cooled , crystals of copper (II) sulphate-5 -waterbegin to form because solubilityofcopper(II) sulphate -5-water
(A) (B)
4.
Which of the atoms represented below by theirelectronicconfiguration willmost readily form a positive ion?
(C) (D)
(A) (B) (C). (D)
2,8,1 2,8,2 2,8,7 2,8,8
The density of the elements increases The relative atomic mass of the It elements decreases The melting point of the elements increases
increases with decreasing temperature decreases with increasing temperature decreases with decreasing temperature increases with increasing temperature
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-33
8.
Thearrangementofelements in the periodic table is based on ,(A) (B) (C) (D)
10.
Which of the following statements about sodium metal are CORRECT? 1.
relative atomic mass atomicnumber massnumber relative molecular mass
II. III.
9.
IV.
When iron (III) sulphate reacts with aqueous potassium iodide,abrown colourationofiodine isproduced. Whichofthefollowingdeductions is correct? /-(A)
Iron (III) sulphate is a reducing agent.
.. (B)
The iodide ion, I,' has been oxidised to iodine.
l(C)
The.i,on,(III) sulphate has lost electrons.
(D)
The iodide ion , I, has gained electrons.
(A) (B) (C) (D) 11.
I and III only land IV only II and Ill only II and IV only
When aqueous silver nitrate is added to an aqueous solution ofmagnesium chloride, a white precipitate forms. The ionic equation forthe formationofthis precipitate is (A)
Mg+(aq) + NO3 (aq ) = MgNO3(s)
(B)
Age+(aq) + 2Cl (aq) = AgCI2(s)
(C)
Mgt+(aq)+2i O3(aq) = Mg
(D)
12.
It contains Na ions and mobile electrons. ItcontainsNa ionsandmobile electrons. It contains cations which repel each other. It contains anions which repel each other.
(NO3 k) Ag+(aq) + Cl (aq) = AgCI(s)
In which TWO of the following equations are the UNDERLINED reagents acting as oxidising agents? 1.
2H2 (aq) + SO2(aq) = 2H2O(I) + 3S(s)
It.
1-12OZ(l) + H2SO4(aq) + 2KI(aq) = K2SO4(aq) + 2I-I,O(1) + I2(s)
III.
2FeC l ,(aq) + C 12(g) = 2FeC 1,( aq)
IV.
C60 (s) + H2 (g) = Cu(s) + H20(1)
(A) _•(B) (C) •(D)
I and Ill I and IV -II and Ili II a rid-[_V
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tl
-413.
When crystals of potassium nitrate are dissolved in water, the temperature of the
17.
Which ofthe following can exactly neutral ise 20 cm' of 2.0 mol dm-'sodium hydroxide?
solution decreases because
(A)
(B) (C)
(D)
14.
The high melting point of ionic compounds may be due to the (A) (B) (C) (D)
15.
little energy is required to break down the crystal, structure of the potassium nitrate heat is always absorbed when a substance dissolves , the energy content of dissolved potassium nitrate is higher than that of solid potassium nitrate potassium nitrate is colder than water
arrangement of ions large numbers of ions attraction among ions movement of ions
I.
10 cm' of 4.0 mol dm-' hydrochloric acid
it.
l0'cm' of2.0 mol dm-3 sulphuric acid
III.
(A) I bnly (B) ' II only (C) I and 11 only (D), , II and III only
18.
Some -calcium carbonate was reacted with excess dilute hydrochloric acid. The volume of carbon dioxide evolved was recorded and plotted against time. Which of the following graphs represents this reaction? (A) Total volume of CO2/Cm 3
Which of the following statements about chemical reactions is NOT correct? (A) (B) (C) (D)
Energy is given out when bonds break and taken in when bonds form. Chemical reactions involve the making and breaking of bonds. Endothermic reactions take energy from.the surroundings. Exothermic reactions give energy to the surroundings.
20 cm' of 4.0 mol dm' nitric acid
Time/ mins
(B) Total volume' of CO2/cm3
Titnel mins
(C) 16.
A substance that conducts an electric current but remains chemically unchanged is (A) (B) (C) (D)
aqueous copper (II) sulphate copper sulphur solid sodium chloride
Time/ mins
(D) Total volume of CO2 / cm3
Time/ mins
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a
- 519.
In which of the following processes is fractional distillation NOT used? (A) (B) (C) (D)
20.
22. . The mass of an element produced in electrolysis is proportional to the
'Refining of crude petroleum Separation of methanol from a methanol-water mixture Separation of chlorophyll ina leaf extract Separation of liquid air into nitrogen and oxygen
Graphite can be used as a lubricant because of (A) (B)
(C) (D)
strong attraction between the hexagonal layers of carbon atoms weak attraction between the hex., gonal layers of carbon atoms the loose electrons which can move throughout the, lattice strong attraction within the hexagonal layers of carbon atoms
II. III. IV.
quantity of electricity which has been passed volume of the electrolyte mass of the electrolyte mass of the electrode
(A) (B) (C) (D)
I only II and IV only I and III only III and IV only
I.
23.
Which of the following statements BEST characterises a catalyst? (A) . (B) (C) (D)
21.
It increases the activation energy of the reaction. It alters the quantity of the products formed. It is always unchanged physically at the end of a reaction. It is always unchanged chemically
Which of the following sulphates are insoluble? 1. II. III . IV.
Barium suiphate Magnesium sulphate Lead sul p hate Aluminium sulphate
(A) (B)
I and III only I and H only
(C) (D)
II and IV only III and IV only
0
at the end of a reaction.
24.
Which of the following operations results in sublimation? (A) (B) (C) (D)
25.'
Heating of solid sodium chloride Cooling of oxygen gas Heating of ethanol . Heating of iodine crystals
How many neutrons and electrons does the 2+
24
particle
12
X
have?
Neutrons (A) (B) (C)
12 12 24
(D)
24
Electrons 10 12 10
°
12
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-626.
Which of the following sources of energy is the MOSTcommonly used in the world today? (A) (B) (C) (D)
Nuclear Fossil fuels Biogas Gasohol
30.
A sample of substance N was placed in solution M. Which ofthe'followingdiagrams represents pairs of experiments that would be most suitable to determine how the concentration of M affects the rate of the reaction?
II 27.
Study the following thermochemical equation.
(A)
X+Y = Z, AH=--B_kJ
x cm3of 1 mol dm-3 solution of M
x cm3 of 2moldm-3 solution of M
1gofN
IgofN
Which of the following methods can be used to compute the value of - B kJ? I. H. III.
(A) (B) (C) (D)
Energy of Z minus the energy of X. and Y Energy of X and Y minus the energy of Z The sum of the energies of X, Y and Z I only I and II only III only II and III only
()
x cm13of cold
(C)
I
II x cm3 of hot solution of I mol dm-3 or m
solution 1 mol dm3
of M.
-1gofN 28.
I g of N
Which of the following processes provides evidence in support of the particulate nature of matter? II (A) (B) (C) (D)
Diffusion Precipitation Condensation Filtration
(D);
1gof N
29.
xcm3of 1 mol dm solution of M 2gN
Sulphuric acid forms the sodium salts NaHSO4 and Na2SO4. Its basicity is therefore (A) (B) (C) (D)
I 2 3 4
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-731.
Atoms of isotopes , X and Y, have 1. II. III.
the same number of electrons.. the same number of protons. different numbers of neutrons.
(A) (B) (C) (D)
III only II and III only I and II only I, Hand III
35.
All of the following gases are colourless EXCEPT (A)
02
(B)
32.
33.
Which ofthe following could produce carbon dioxide and carbon monoxide as pollutants? I. II. III. 'IV.
Geothermal energy Solar energy Fossil fuels Biogas
(A)
I only
(B) (C)
H only II and III only
(D)
III and IV only
At 1 atmosphericpressure,,the particles move fastest in a (A) (B) (C) (D)
34.
36.
37.
(C)
NO2
(D)
NH3
Which of the following elements reacts most vigorously with I-t (aq) ions to give hydrogen gas? (A) (B) (C)
Zinc Lead Iron
(D)
Copper
Which of the following is a weak electrolyte? (A) (B) (C) (D)
Molten lead Aqueous ethanoic acid Dilute hydrochloric acid Molten lead bromide
liquid at 25 °C gas at 25 °C liquid at 100 °C gas at 100 °C
Which of the following pairs of acids is monobasic? (A)
HCl and CH*3CO2H
(B)
HCl and H2SO4
(C)
HNO3 and H2S04
(D)
CH3 *CO,H and HO2000,H
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-840.
Item 38 refers to the following diagrams.
will(produce blue precipitate with aqueous sodium hydroxide?
Dilute sulphuric acid \
. C\
' Which of the following aqueous solutions
(A) (B) (C) (D)
Calcium carbonate
41. 11
Calcium nitrate Iron (11) nitrate Copper (11) nitrate Aluminium nitrate
Which of the following statements is true? (A) (B) (C) (D)
Ammonia is an acidic gas. Ammonia is soluble in water and functions as a base. Nitric acid is used as a fertilizer and a reducing agent. Nitric acid contains two. replaceable hydrogen atoms.
III 42.
C
Aluminium is more reactive than iron yet, after a while, a piece of aluminium left exposed to the atmosphere becomes corrosion resistant whilst a similar piece of iron continues to corrode. This is because the
Dilute hydrochloric
acid
IV
(S
Calci um
aluminium has reacted completely (A) (B) . iron oxide formed is more reactive
_31 r-11
than the aluminium oxide formed
-
(C)
carbonate Z 38.
In which ofthe experiments would the amount of carbon dioxide collected be GREATEST? (A) (B) (C) (D)
39.
I II III [V
Which of the following gives an alkaline reaction with moist litmus paper? (A)
(B)
(C) (D)
Ammonia Nitrogen (IV) oxide Hydrogen chloride . Water
(D)
3.
oxide film on aluminium protects the metal from further corrosion but the oxide film on iron does not iron oxide reacts with the iron below but aluminium oxide does not react with the aluminium below
Which of the following methods is used for the extraction of metals at the top of the electrochemical 'series?
(A) (13) (C) (D)
Electrolysis of molten chloride Electrol y sis of aqueous chloride Electrolysis of molten oxide Reduction of oxide with carbon
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1
C 4
9 44.
Which of the following metals will NOT react with water under any conditions? (A) (B) (C) (D)
48.
A compound has the following structural formula. HHHH I I I
Magnesium A l u mi n i um Iron Copper
H-C-C-C-C-O-H I I I HH
H
H-C-H 45.
H-C-H
Which of the following observations would you expect to make when excess sodium hydroxide solution is added to a solution containing zinc ions? (A) (B) (C) (D)
H Which TWO of the following statements are correct? The compound
An alkaline'gas produced White precipitate soluble in excess White precipitate insoluble in excess A green precipitate insoluble inexcess
Items 46-47 refer to the following organic compounds. (A) (B) (C) (D)
Ethanol Ethene Ethanoic acid Ethyl ethanoate
49.
I.. II. III. IV.
is an alcohol. is a branched alkane. can react with sodium. Js an unreactive substance.
(A)
I and III
(B) (C) (D)
I and IV H and III II and IV
Which of the following would you expect to form an addition polymer?
In answering items. 46-47 a particular choice from the above maybe made more than once, once, or not at all.
(A)
Which of the organic compounds
(B)
46.
undergoes addition reactions?
47.
is immiscible with waterand is sweet-smelling?
CH,=CH CN O CH3 - C-NH2
0 I
(C) C17H35
(D)
-C - OH
H I CH3' C- CH3 I CH 3
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-1050.
Ethanol is NOT used asa (A) (B) (C) (D)
51.
.55.
beverage fuel lubricant solvent
In whichofthe following istheamide linkage present? (A) (B) (C) (D)
Polythene Nylon Starch Terylene
56.
52.
The equation shown above represents a reaction which is classified as
53.
Terylene Nylon Starch Polythene
(A) (B) (C) (D)
I only I and IV only I, II and III only II, III and IV only
Which of the following substances gives a blue colouration with iodine? Fats.. Starches Proteins Polyamides
Item 57 refers to the following diagram of an experiment.
addition neutralisation polymerisation substitution
Yeast may be used in the fermentation of starch to ethanol because (A)
it is acidic
(B)
it contains enzymes which act on starch yeast itself produces the ethanol it fixes the oxygen needed in the reaction from the atmosphere
(C) (D)
57. 54.
1. II. III. I V.
(A) (B) (C) (D)
-H H HH I I I I H-C-C-H +C12-->H-C-C-C1 +HCI I i I I H H H H
(A) (B) (C) (D)
Which ofthe following is/are condensation polymers?
The process by which large molecules of hydrocarbon are broken up into smaller molecules is called (A) (B) (C)
saponification cracking polymerization
(D)
condensation
002601/F2003
The gas produced can be BEST identified ilLiquid Xis
(A) (B) (C)
li me water litmusselution bromine water
(D)
sodium hydroxide solution
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- HItems 58 - 59 refer to the following diagram which represents three conversions in organic chemistry
Ethyl ethanoate
II
Ethanoic acid III
Ethanol
58.
59.
Which ofthe following equations BEST represents Conversion I? (A)
CH3000H + C2H50H -a CH3000C2H5 + H2O
(B)
CH3COOH + C2HSOH
(C)
CH3000H+C2H5OH - CH3000C2H5 +H2O
(D)
CZHSCOOH +C2H5OH - C2H5000C-H5 ± H2O
C2H5000CH3 + H2O
For Conversion II, ethyl ethanoate is heated under reflux with another compound. The name of the compound is sodium chloride ethanol fatty acids sodium hydroxide
60.
The compound propene, CH 3 CH=CH 2' reacts with bromine to produce (A)
CH3CBrCHBr + HBr
(B)
CH3CHBrCH2Br + HBr
(C)
CH3C1-12CHBr2
(D)
CH3CHBrCH,Br
IF YOU FINISH BEFORE TIME IS CALLED , CHECK YOUR WORK ON THIS TEST. 00260 1 /F 2003
