Neet - Combined Test - 3 (p, c, b) - 16.07.2017

NEET | 16.07.2017 COMBINED TEST – 3 (P, C, B)

COMBINED TEST – 3 (P, C, B) Time: 3 hrs

Pr! – " (Ph#si$s) particle is projected projected with a certain certain velocity velocity at two diferent diferent angles o projection projection 1. A particle with with resp respec ectt to the horiz horizon onta tall plan plane e so as to have have the the same same rang range e R on the horizontal plane. I t 1 and t 2 are the times taken or the two paths, then which one o the ollowing relations is correct? 1! t 1t 2 " 2R 2R#g 2! t 1t 2 " R#g $! t 1t 2 " R#2g #2g %! t 1t 2 " %R#g the x ' y y plane at any time t is given (y) x (y) x " $t $t 2 2. &he position o a particle moving in the x * +t +t ! metres) y " t t 2*2t *2t ! metres. elect the correct statement. 1! Acceleration is zero at t " 2! elocity is zero at t " $! elocity is zero at t " 1 s %! elocity elocity and acceleration o the particle are never zero. string, is whirled in a horizontal horizontal circle circle with a 3. A stone tied to the end o a 1 m long string, constant speed. I the stone makes 22 revol/tions in %% s, what is the magnit/de and direction o acceleration o the stone? p 2 ms 2 1! 4 and direction along the radi/s towards the centre. 2 *2 2! p m s and direction along the radi/s away rom the centre. $! p2 m s*2 and direction along the radi/s towards the centre. %! p2 m s*2 and direction along the tangent to the circle. %. 0ater drops all at reg/lar intervals rom a tap which is .- m a(ove the gro/nd. &he third drop is leaving the tap at the instant the rst drop reaches the gro/nd. 3ow ar a(ove the gro/nd is the second drop at that instant? 1! 1.2 m 2! 2.- m $! $.4 m %! .-- m &wo cars having masses m1 and m2 move in circles o radii r 1 and r 2 respectively. I &. &wo they complete the circle in e5/al time, the ratio o their ang/lar speed 1#2 is m1 r 1 m1r 1 -

m r m r 1! 2 (2) 2 (3) 2 2 (4) 1 *1 6. A man r/nning on a horizontal road at 6 km h nds the rain alling vertically. 3e increases his speed to 12 km h *1 and nds that the drops make angle $-7 with the vertical. 0hat is the speed o the rain? %! 7 km h*1 ˆ ˆ vector is given (y r = cos t x + sin  t y, where 7. A particle moves so that its position vector  is a constant. 0hich o the ollowing is tr/e? 1! elocity is perpendic/lar to r and acceleration is directed towards the origin. 2! eloc elocity ity is perpen perpendic dic/la /larr to r and acceleration is directed away rom the origin. $! elocity elocity and acceleration (oth are perpendic/lar perpe ndic/lar to r . 1! 6 km h *1

2! % 7 km h81

$! 6 3 km h*1

%! elocity elocity and acceleration (oth are parallel paralle l to r .

1B/1, TVS Street, Rasipuram – 637408. Namakkal (Dt. 1 !"# $ %44433186%, &mail $ impulse4'ee)mail.*"m


'. &he position vector o a particle R as a /nction o time is given (y R = 4 sin(2p t )iˆ + 4 cos(2p t ) ˆj 0here R is in meters, t is in seconds and iˆ and jˆ denote /nit vectors along x and y 'directions, respectively. 0hich one o the ollowing statements is wrong or the motion o the particle? 1! 9agnit/de o the velocity o particle is 6 m s *1. 2! :ath o the particle is a circle o radi/s % m. $! Acceleration vector is along

R

-

v2 %! 9agnit/de o acceleration vector is R where v is the velocity o particle. . A projectile is red rom the s/race o the earth with a velocity o  m s *1 and angle 5 with the horizontal. Another projectile red rom another planet with a velocity o $ m s *1 at the same angle ollows a trajectory which is identical with the trajectory o the projectile red rom the earth. &he val/e o the *2 acceleration d/e to gravity on the planet in m s ! is ;iven g " <.6 m s*2! 1! $. 2! .< $! 1+.$ %! 11-.6 -1 ˆ ˆ ˆ A projectile is given an initial velocity o (i + 2 j )ms where, i is along the 10.

ˆ gro/nd and j is along the vertical. I g " 1- m s*2, the e5/ation o its trajectory is 1! % y " 2 x * 2 x 2 2! y " x *  x 2 $! y " 2 x *  x 2 %! % y " 2 x *  x 2 :oints P,Q and R are in a vertical line s/ch that PQ " QR. A (all at P is 11. allowed to all reely. &he ratio o times o descent thro/gh PQ and QR is 1! 1 = 1 2! 1= 2 $! 1=  2 81! %! 1=  2 >1! &wo particles A and B are moving in x ' y plane. :article A moves along a line 12. with e5/ation y " x while B moves along x 'ais s/ch that their x ' coordinates are always e5/al. I B moves with a /niorm speed $ m s *1, the speed o A is 1! $ 2 ms81 2! $# 2 ms81 $! 1#$ms81 %! $ m s *1 &wo cars are moving in the same direction with a speed o $- km h *1. &hey 13. are separated rom each other (y  km. &hird car moving in the opposite direction meets the two cars ater an interval o % min/tes. &he speed o the third car is 1! $- km h *1 2! $ km h*1 $! %- km h*1 %! % km h*1 A man r/nning at a speed o  km h*1 nds that the rain alls vertically. 1%. 0hen he stops r/nning, he nds that the rain is alling at an angle o +-7 with the horizontal. &he velocity o rain with respect to r/nning man is 5 5 3 4 3 kmh 1 kmh-1 kmh-1 1! 3 2! 2 $! 5 %! -

5 3kmh 1 A certain vector in the x-y plane has an x component o % m and a y 1&. component o 1- m. It is then rotated in the x-y plane so that its x component is do/(led. &hen its new y component is 1! 2- m 2! 4.2 m $! .- m %! %. m -

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A police party is moving in a jeep at a constant speed v . &hey saw a thie at 16. a distance x on a motorcycle which is at rest. At the same moment the thie saw the police and he started at constant acceleration a. 0hich o the ollowing relations is tr/e, i the police is a(le to catch the thie? 1! v 2 @ ax 2! v 2 @ 2ax $! v 2  2ax %! v 2 " ax A car starts rom rest and accelerates at /niorm rate o + m s *2 or some 17. time, then moves with constant speed or some time and retards at the same /niorm rate and comes to rest. &otal time or the jo/rney is 2% s and average speed or jo/rney is 2- m s *1. 3ow long does the car move with constant speed? 1! % s 2! 6 s $! 12 s %! 1+ s A particle P is moving in a circle o radi/s R with /niorm speed v . C is the 1'. centre o the circle and AB is a diameter. &he ang/lar velocity o P a(o/t A and C are in the ratio 1! 1 = 1 2! 1 = 2 $! 2 = 1 %! % = 1 &he distance travelled (y a particle in time t is given (y x " kt $, where k " 1. 1- m s *$. &he average speed o the particle rom t " 1 s to t "  s is 1! 26- m s *1 2! $-- m s*1 $! $1- m s *1 %! $2- m *1 s &he maim/m height attained (y a projectile is increased (y 1B (y 20. increasing its speed o projection witho/t changing the angle o projection. &hen the percentage increase in the horizontal range will (e 1! 2B 2! 1B $! -.B %! -.2B A (ody o mass -. kg travels in a straight line with velocity v " ax $#2 where 21. a "  m*1#2 s*1. &he work done (y the net orce d/ring its displacement rom x " - to x " 2 m is 1! 1. C 2! - C $! 1- C %! 1-- C &wo inclined rictionless tracks, one grad/al and the other steep meet at A 22. rom where two stones are allowed to slide down rom rest, one on each track as shown in g/re.

0hich o the ollowing statement is correct? 1! Doth the stones reach the (ottom at the same time (/t not with the same speed. 2! Doth the stones reach the (ottom with the same speed and stone I reaches the (ottom earlier than stone II. $! Doth the stones reach the (ottom with the same speed and stone II reaches the (ottom earlier than stone I. %! Doth the stones reach the (ottom at diferent times and with diferent speeds. A (o( o mass m is s/spended (y a light string o length L. It is imparted a 23. horizontal velocity v - at the lowest point A s/ch that it completes a semicirc/lar trajectory in the vertical plane with the string (ecoming slack only on reaching the topmost point, C. 0hat is the ratio o the kinetic energies o the mass at point B and point C? 1B/1, TVS Street, Rasipuram – 637408. Namakkal (Dt. 3 !"# $ %44433186%, &mail $ impulse4'ee)mail.*"m


1! 1 = 2 2! 2 = 1 $! $ = 1 %! 1 = $ In g/re, the coeEcient o riction (etween the Foor and the (lock B is -.1. 2%. &he coeEcient o riction (etween the (locks B and A is -.2. &he mass o A is m#2 and that o B is m. 0hat is the maim/m horizontal orce F can (e applied to the (lock B so that two (locks move together?

1! -.1mg 2! -.-mg $! -.1mg %! -.%mg A (lock o mass % kg is kept on a ro/gh horizontal s/race. &he coeEcient o 2&. static riction is -.6. I a orce o 1< G is applied on the (lock parallel to the Foor, then the orce o riction (etween the (lock and Foor is 1! $2 G 2! 16 G $! 1< G %! <.6 G A particle o mass m is tied to a light string o length l and rotated along a 26. vertical circ/lar path. 0hat sho/ld (e the minim/m speed at the highest point o its path so that the string does not (ecome slack at any position?

gl 2 gl gl / 2 1! 2! $! zero %! A horizontal orce o 12 G p/shes a -. kg (ook against a vertical wall. &he 27. (ook is initially at rest. I the coeEcients o riction are μk " -.+ and μs " -.6, which o the ollowing statements is tr/e? 1! &he magnit/de o the rictional orce is  G. 2! &he magnit/de o the rictional orce is 4.2 G. $! &he normal orce is  G. %! &he (ook will start moving and accelerate. A person is standing in an elevator. In which sit/ation he nds his weight 2'. less? 1! 0hen the elevator moves /pward with constant acceleration 2! 0hen the elevator moves downward with constant acceleration $! 0hen the elevator moves /pward with /niorm velocity %! 0hen the elevator moves downward with /niorm velocity 2. A smooth (lock is released at rest on a %- incline and then slides a distance Hd. &he time taken to slide is Hn times as m/ch to slide on ro/gh incline than on a smooth incline. &he coeEcient o riction is

1!

30.

m k = 1 -

1 n2

m k = 1 2!

1 n2

m s

=

1-

$!

1 n2

m s

= 1-

%!

1 n2

An 6- kg person is parach/ting and is eperiencing a downward

acceleration o 2.6 m#s2. &he mass o the parach/te is  kg. &he /pward orce on the open parach/te is &ake g"<.6 m#s2! 1! < G 2! +4 G $! %+ G 1B/1, TVS Street, Rasipuram – 637408. Namakkal (Dt. 4 !"# $ %44433186%, &mail $ impulse4'ee)mail.*"m

%! <2 G


31.

A gardener holds a hosepipe thro/gh which water is g/shing o/t at a rate o

% kg s'1 with speed 2 ms'1. &he moment the speed o water is increased to $ ms' 1, the gardener will eperience a jerk o= 1! 2- Gs in (ackward direction

2! 16 Gs in orward direction

$! 1- Gs in (ackward direction %! 1- Gs in orward direction 32. Jn a smooth plane s/race g/re! two (lock A and D are accelerated /p (y applying a orce 1 G on A. I mass o D is twice that o A, the orce on D is

1!

33.

$- G

2! 1 G

$! 1- G

%!  G

S!!eme! – 1: Jn a rainy day it is diEc/lt to drive a car or (/s at high speed.

S!!eme! – 2: &he val/e o coeEcient o riction is lowered d/e to wetting o the s/race. 1! tatement * 1 is tr/e, tatement * 2 is tr/e, tatement * 2 is correct eplanation or statement * 1. 2! tatement * 1 is tr/e, tatement * 2 is tr/e, tatement * 2 is GJ& a correct eplanation or statement * 1. $! tatement * 1 is &r/e, tatement * 2 is Kalse. %! tatement * 1 is Kalse, tatement * 2 is &r/e.

3%.

S!!eme! – 1: A rocket moves orward (y p/shing the s/rro/ndings air

(ackwards.

S!!eme! – 2: It derives the necessary thr/st to move orward according to Gewtons third law o motion. 1! tatement * 1 is tr/e, tatement * 2 is tr/e, tatement * 2 is correct eplanation or statement * 1. 2! tatement * 1 is tr/e, tatement * 2 is tr/e, tatement * 2 is GJ& a correct eplanation or statement * 1. $! tatement * 1 is &r/e, tatement * 2 is Kalse. %! tatement * 1 is Kalse, tatement * 2 is &r/e. 3&. S!!eme! – 1: &he driver in a vehicle moving with a constant speed on a straight road is in a inertial rame o reerence.

S!!eme! – 2: A reerence rame in which Gewtons laws o motion are applica(le is non'inertial. 1! tatement * 1 is tr/e, tatement * 2 is tr/e, tatement * 2 is correct eplanation or statement * 1. 2! tatement * 1 is tr/e, tatement * 2 is tr/e, tatement * 2 is GJ& a correct eplanation or statement * 1. $! tatement * 1 is &r/e, tatement * 2 is Kalse. 1B/1, TVS Street, Rasipuram – 637408. Namakkal (Dt.  !"# $ %44433186%, &mail $ impulse4'ee)mail.*"m


%! tatement * 1 is Kalse, tatement * 2 is &r/e. A (lock o mass 1 kg is placed on a tr/ck which accelerates with 36. acceleration  m#s2. &he coeEcient o static riction (etween the (lock and tr/ck is -.+. &he rictional orce acting on the (lock is 1! G 2! + G $! .66 G %! %.+G A 1-- G orce acts horizontally on a (lock o 1- kg placed on a horizontal 37. ro/gh s/race o coeEcient o riction μ"-.. I the acceleration d/e to gravity g! is taken as 1- ms '2, the acceleration o the (lock in ms '2! is 1! 2. 2! 1$!  %! 4. A monkey o mass 2- kg is holding a vertical rope. &he rope will not (reak 3'. when a mass o 2 kg is s/spended rom it (/t will (reak i the mass eceeds 2 kg. 0hat is the maim/m acceleration with which the monkey can climp /p along the rope? g"1- m#s2! 1!2. m#s2 2!  m#s2 $! 1- m#s2 %! 2 m#s2 &he coeEcient o static riction μs, (etween (lock A o mass 2 kg and the 3. ta(le as shown in the g/re is -.2. 0hat wo/ld (e the maim/m mass val/e o (lock D so that the two (locks do not move? &he string and the p/lley are ass/med to (e smooth and massless. g"1- m#s 2!

1!-.% kg

2! 2.- kg

$! %.- kg %! -.2 kg ˆ ˆ ˆ A (ody /nder the action o a orce F = 6i - 8 j + 10k , ac5/ires an acceleration %0. o 1 m#s2. &he mass o this (ody m/st (e 1!1- kg 2! 2- kg $! 1- 2 kg %! 2 10 kg A conveyor (elt is moving at a constant speed o 2m#s. A (o is gently %1. dropped on it. &he coeEcient o riction (etween them is μ"-.. &he distance that the (o will move relative to (elt (eore coming to rest on it taking g"1- ms'2, is 1!1.2 m 2! -.+ m $! zero %! -.% m A stone is dropped rom a height h. It hits the gro/nd with a certain %2. moment/m P. I the same stone is dropped rom a height 1--B more than the previo/s height, the moment/m when it hits the gro/nd will change (y= 1!+6 B 2! %1 B $! 2-- B %! 1-- B A car o mass m is moving on a level circ/lar track o radi/s L. I μs %3. represents the static riction (etween the road and tyres o the car, the maim/m speed o the car in circ/lar motion is given (y=

Rg / m s mRg / m s m s mRg m s Rg 1! (2) (3) (4) &hree (locks with masses m, 2m and $m are connected (y strings as shown %%. in the g/re. Ater an /pward orce K is applied on (lock m, the masses move /pward at constant speed v . what is the net orce on the (lock o mass 2m?  g is the acceleration d/e to gravity!



1!2 mg 2! $ mg $! + mg %! zero A car is moving in a circ/lar horizontal track o radi/s 1- m with a constant %&. speed o 1- m#s. A (o( is s/spended rom the roo o the car (y a light wire o length 1.- m. &he angle made (y the wire with the vertical is 1! -2! π#$ $! π#+ %! π#%

Pr! – B (Chemis!r#) %6.

Kollowing are o/r Gewman projection or tartaric acid.

0hich represents a meso compo/nd? 1! I D! II M! III N! I 0hich o these are chiral molec/les witho/t a chiral centre? %7.

0hich o the ollowing compo/nds are meso orms?

%'.

A! Jnly 1

%.

&0.

D! 1 and $

M! 1 and 2

N! 2 and $

2L, $L! * 2, $'(/tanediol is

IO:AM name o the ollowing compo/nd is

A! 1'ethyl'2'methylcycloheane M! +'ethyl'1'methylcycloheane

D! 2'ethyl'1'methylcycloheane N! 1'ethyl'+'methylcycloheane



&1.0hat is the IO:AM name o the compo/nd shown?

A! 1'methylpropanamide M! G'(/tylethanamide Morrect IO:AM name o &2. A! Kormyl methanoic acid M! (oth a! and (!

&3.

D! G'methyl propanamide N! G'methyl(/tanamide is D! 2'oo'ethanoic acid N! none o the a(ove

In the nomenclat/re o

priority order is Prst at the endQ A! * M3$ @ * J3 @ M " M D! *J3 @ *M3 $@M"M M! M"M@*M3$@*J3 N! *M3$ @M " M @ * J3 A , A is named as= &%. A! Dicycle P2.2.1Q heptane M! Dicycle P2.2.1Q heane IO:AM name o &&.

D! Dicycle P2.2.2Q heane N! Dicycle P2.1.-Q heane

A! $'methylcycloheene D! 1'methylcyclohe'2'ene M! +'methylcycloheene N! 1'methylcyclohe''ene elect the correct statements!. &6. A! Jptical isomers are also called enantiomers D! 9olec/les that are not s/per imposa(le on their mirror images are dissymmetric M! Doth are correct N!Gone o the a(ove is correct

&7.Assign correct cong/ration to ollowing stereo compo/nds

I II A! R R M! S S Netection o &'.

III I II III R D! S R S S N! R S R the chlorine is not possi(le witho/t preparing sodi/m etract in



&.

0hich o the organic compo/nds will give red colo/r in Tassaigne test?

/lph/r is converted into 2' on /sion with sodi/m. /lphide can (e 60. detected (y A! Tead acetate * when (lack precipitate is ormed D! odi/m nitropr/sside when p/rple colo/r is ormed M! Doth a! and (! N!Gone o the a(ove :resence o /nsat/ration in organic compo/nd is conrmed (y 61. A! Dromine test D! Daeyers test M! Doth a! and (!N! Gone o these 9atch the ollowing and choose the correct option. 62.

C*+m – I A. N/mas method D. Ujeldahls method M. Mari/s method N Mhromatography . Modes= A A! 2 M! %

D % 2

M 1 $

N $ 1

1. 2. $. %.

C*+m - II AgGJ$ ilica gel Gitrogen gel Ammoni/m s/lphate

A D! $ N! %

D % 1

M 1 $

N 2 2

In Ujeldahls method, the gas evolved rom 1.$2 g sample o ertilizer is 63. passed into -.- mT o -.2-$- G 3 2J%. 2.$2 mT o -.1<6- G GaJ3 are re5/ired or the titration o /n/sed acid. 0hat will (e the percentage o nitrogen in ertilizer? A! 2.-B D! .%$B M! +.%6B N! 12.-2B In cari/s method o estimation o halogens 2- mg o an organic compo/nd 6%. gave 1%1 mg o AgDr. &he percentage o (romine in the compo/nd is at. mass Ag"1-6, Dr"6-! A! 2% D! $+ M! %6 N! +A gaseo/s hydrocar(on gives /pon com(/stion -.42 g o water and $.-6 g 6&. o MJ2. &he empirical orm/la o the hydrocar(on is A! M23% D! M$3% M! M+3 N! M436 Jrtho nitrophenol is less sol/(le in water than p' and m'nitrophenols 66. (eca/se A! o'nitrophenol is more volatile in stream than those o m and p'isomers D! o'nitrophenol shows intramolec/lar 3'(onding M! o'nitrophenol shows intermolec/lar 3'(onding N!melting point o o'nitrophenol is lower than those o m and p'isomers &he compo/nd that does not give a (l/e colo/r in Tassaignes test is 67. 1B/1, TVS Street, Rasipuram – 637408. Namakkal (Dt. % !"# $ %44433186%, &mail $ impulse4'ee)mail.*"m


A! Aniline D! ;lycine M! 3ydrazine N! Orea Lesistance o -.2 9 sol/tion o an electrolyte is -V. &he specic 6'. cond/ctance o the sol/tion is 1.$  m '1. I the resistance o the -.% 9 sol/tion o the same electrolyte is 2+- V, its molar cond/ctivity is A!+2- m2 mol'1 D!+.2W1-'%  m2 mol'1 M!+2W1-'%  m2 mol'1 N!+2.  m2 mol'1 Dy dil/ting a week electrolyte, specic cond/ctivity U c! and e5/ivalent 6. cond/ctivity λ c! change as λ c decreases A!(oth increase D! Uc increases, M! U c decreases, λ c increases N!(oth decreases 0hich o the ollowing electrolytic sol/tion has the least specic 70. cond/ctance? A!-.-2G D!-.2G M!2G N!-.--2G 0hich o the ollowing does not cond/ct electricity? 71. A!/sed GaMl D!solid GaMl M!(rine sol/tion N!copper &he /nits o e5/ivalent cond/ctance, are 72. A!V cm2e5/iv'1 D! V cm2e5/iv M! V'1cm2e5/iv'1 N! V'1 cm2e5/iv ;iven, l#a"-. cm '1, L"- ohm, G"1.-. &he e5/ivalent cond/ctance o the 73. electrolytic cell is A!1- V'1cm2 g e5/iv'1 D! 2- V'1cm2 g e5/iv'1 M! $-- V'1cm2 g e5/iv'1 N! 1-- V'1cm2 g e5/iv'1 7%. X A ClCH2COONa = 224W-1cm2 gequi-1

AX NaCl = 38.5W-1cm2 gequi-1 AX HCl = 203W-1cm2 gequi-1

l 0hat is the val/e o ClCH2COOH "? A!266. V'1cm2 g e5/iv'1 D! 26<. V'1cm2 g e5/iv'1 M! $66. V'1cm2 g e5/iv'1 N! <. V '1cm2 g e5/iv'1 Ionic mo(ility o Ag > is λ Ag>"W1-'1 V'1cm2 e5/iv'1! 7&. A! .2W1-'< D! 2.%W1-'< M! 1.2W1-'< N! 6.2W1-'< 0hat will (e p3 o a5/eo/s sol/tion o electrolyte in electrolytic cell d/ring 76. electrolysis o M/J% a5! (etween graphite electrodes? A! p3"1%.D! p3Y4.M! p3@4.N! p3"4.2' &he charge re5/ired or red/ction o 1 mole o Mr2J4 ions to Mr $> is 77. A!<+-- M D!2W<+-- M M!$W<+-- M N! +W<+-- M Monsider the ollowing cell reactions 7'. 2Kes!>J2g!>%3>a5!→2Ke2>a5!>232Jl!, R-"1.+4  AtPKe2>Q"1-'$ 9, :J2!"-.1 atm and p3"$, the cell potential at 2 -M is A!1.%4  D!1.44  M!1.64  N! 1.4  0hat will (e the electrode potential o that hydrogen electrode is lled with 7. 3Ml sol/tion o p3 val/e 1.-? A!' <.1  D!><.1  M!><.1m N! '<.19v



&he standard oidation potentials o Sn, M/, Ag and Gi electrodes are >-.4+, '0. ' -.$%, ' -.6- and >-.2  respectively. 0hich o the ollowing reaction will provide maim/m voltage? A! M/>2Ag>a5!→M/2>a5!>2Ag D! Sn>2Ag>a5!→Sn2>a5!>2Ag M!32>Gi2>a5!→23>a5!>Gi N!Sn>M/2>a5!→Sn2>a5!>M/ R! Sn>23>a5!→Sn2>a5!>32 ;iven the standard red/ction potentials '1. 2> Sn #Sn"'-.4% , Ml2#Ml'"1.$+  1 3># 2 32"-  and Ke2>#Ke$>"-.44  &he order o increasing strength as red/cing agent is A!Ml', Sn, 3 2, Ke2> D! 32, Sn, Ke 2>, Ml' M! Ml', Ke2>,Sn, 32 N! 32, Ke2>, Ml', Sn R! Ml ', Ke2>,32, Sn In a hydrogen * oygen /el cell, com(/stion o hydrogen occ/rs to '2. A! ;enerate heat. D! Mreate potential diference (etween the two electrodes. M! :rod/ce high p/rity water N!Lemove adsor(ed oygen rom electrode s/race &he acid /sed in lead storage (attery is '3. A!32J% D!3$:J% M!3Ml N!3GJ$ 0hich o the ollowing statements is incorrect regarding physisorptions? '%. A! It occ/rs (eca/se o van der 0aals orces D! 9ore easily li5/ea(le gases are adsor(ed readily M! Onder high press/re it res/lts into m/ltimolec/lar layer on adsor(ent s/race N! Rnthalpy o adsorption Z3 adsorption! is slow and positive 0hich one o the ollowing graphs represents Kre/ndlich adsorption '&. isotherm?

In Tangm/irs model o adsorption o a gas on a solid s/race '6. A! the rate o dissociation o adsor(ed molec/les rom the s/race does not depend on the s/race covered D! the adsorption at a single site on the s/race may involve m/ltiple molec/les at the same time M! the mass o gas striking a given area o s/race is proportional to the press/re o the gas N! the mass o gas striking a given area o s/race is independent o the press/re o the gas 0hich o the ollowing is an eample or heterogeneo/s catalysis reaction? '7. NO( g )

X 2J2g! A! 2J2g! > J2g! XXX D! 3ydrolysis o a5/eo/s s/crose sol/tion in the presence o a5/eo/s mineral acid Pt

(s) X 232Jl! > J2g! M! 232J2l! XXX



N! 3ydrolysis o li5/id in the presence o a5/eo/s mineral acid &he decomposition o hydrogen peroide can (e slowed (y the addition o ''. acetamide. &he latter acts as a A! detainer D! stopper M! promoter N! inhi(itor 9ention the type o reaction to o(tain A/ol!, '. Leaction, 2A/Ml$ > $3M3J > $3 2J → 2A/ol! > $3MJJ3 > +3Ml A! 3ydrolysis D! Jidation M! Led/ction N! No/(le decomposition Tyophilic sols are 0. A! irreversi(le sols D! they are prepared rom inorganic compo/nds M! coag/lated (y adding electrolytes N! sel'sta(ilising

1B/1, TVS Street, Rasipuram – 637408. Namakkal (Dt. 1+ !"# $ %44433186%, &mail $ impulse4'ee)mail.*"m


Pr! – C (Bi*+*#)





1B/1, TVS Street, Rasipuram – 637408. Namakkal (Dt. 1 !"# $ %44433186%, &mail $ impulse4'ee)mail.*"m






"NS/E E – 16.07.2017 Q.No Ans Q.No Ans Q.No Ans Q.No Ans Q.No Ans

1 1 11 $ 21 2 31 1 41

2 $ 12 1 22 $ 32 $ 42

3 $ 13 % 23 $ 33 1 43

%

2

%

Q.No Ans Q.No Ans Q.No Ans Q.No Ans Q.No Ans

46 A 56 C 66 B 76 C 86 C

47 C 57 B 67 C 77 D 87 D

48 B 58 B 68 B 78 D 88 D

Q.No Ans Q.No Ans Q.No Ans Q.No Ans Q.No Ans Q.No Ans Q.No Ans Q.No Ans Q.No Ans

91 3 101 3 111 1 121 1 131 2 141 2 151 3 161 3 171 2

92 2 102 2 112 4 122 1 132 4 142 1 152 2 162 3 172 1

93 3 103 4 113 1 123 2 133 2 143 2 153 4 163 1 173 3

PART – A (PHYSICS) 4 5 6 $ % 2 14 15 16 % 2 $ 24 25 26 2 % $ 34 35 36 1 % $ 44 45 4 % PART – B (CHEMISTRY) 49 50 51 A A D 59 60 61 B C C 69 70 71 C D B 79 80 81 D B E 89 90 C D PART – C (BIOO!Y) 94 95 96 3 1 3 104 105 106 2 1 1 114 115 116 1 3 1 124 125 126 1 3 1 134 135 136 3 3 4 144 145 146 1 4 1 154 155 156 4 3 2 164 165 166 4 4 2 174 175 176 4 2 2

7 1 17 % 27 1 37

8 1 18 2 28 2 38

9 1 19 $ 29 2 39

10 $ 20 2 30 1 40

$

1

1

$

52 C 62 B 72 C 82 B

53 D 63 B 73 83 A

54 A 64 A 74 C 84 D

55 A 65 D 75 A 85 C

97 4 107 1 117 1 127 2 137 3 147 4 157 4 167 2 177 2

98 2 108 4 118 2 128 3 138 4 148 1 158 4 168 2 178 3

99 4 109 1 119 3 128 2 139 4 149 2 159 1 169 3 179 1

100 2 110 3 120 4 130 2 140 1 150 1 160 1 170 1 180 3



1B/1, TVS Street, Rasipuram – 637408. Namakkal (Dt. 1% !"# $ %44433186%, &mail $ impulse4'ee)mail.*"m

Neet - Combined Test - 3 (p, c, b) - 16.07.2017

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