Practice Set-2

34 Pages·2017·0.33 MB·English

Q
QuestionBookletCode
Q
Question Booklet Code
AIPMT
All India Pre-Medical/Pre-Dental Entrance Test
2
Practice Set
Duration:3Hours Max.Marks:720
1. Thetestisof3hoursdurationandTestBookletcontains180questions.Eachquestioncarries4marks.Foreachcorrect
response,thecandidatewillget4marks.Foreachincorrectresponse,onemarkwillbedeductedfromthetotalscores.The
maximummarksare720.
2. ThequestionpapercontainsthreepartsA,BandCofPhysics,ChemistryandBiologyrespectively.
3. PartAcontains45QuestionsfromPhysicssection.PartBcontains45QuestionsfromChemistrysection.PartCcontains90
QuestionsfromBiology.
4. RoughworkistobedoneonthespaceprovidedforthispurposeintheTestBookletonly.
5. On completion of the test, the candidate must handover the Answer Sheet to the invigilator in the Room/Hall. The
candidatesareallowedtotakeawaythisTestBookletwiththem.
6. Immediatelyfilltheparticularsonthispageofthetestbookletwithblue/blackballpointpen.Useofpencilisstrictly
prohibited.
7. Blankpapers,clipboards,logtables,sliderules,calculators,cameras,cellularphones,pagersandelectronicgadgetsarenot
allowed.
8. Youarenotallowedtogoanywherebeforetheendofthetest.
9. Writeyournameandrollnumberinthespaceprovidedonthebottomofthispage.
Name of the Candidate Roll Number
(in Capital Letters) (in Figures)
in Words
Q
QuestionBookletCode
PHYSICS
PART A
1.
Figure showscurrent inapart ofelectrical circuit, thenvalueofcurrent iis
3A
1Ω 2Ω
1Ω 2Ω
i
1Ω 2Ω
3A
a. 6 A b. 3 A c. 2 A d. Insufficient information
2.
A particle is revolving in a circular path completes first half of circumference in 4s and next half in2s, then the
average angular velocity ofparticle is
a. 2p rad/s b. p rad/s c. prad/s d. 2prad/s
3 3
3.
An electric kettle takes 4A current at220V. How much time will it take to boil 1 kg of water from temperature
20°C?(Boilingpoint ofwater =100°C)
a. 8.4 min b. 6.3 min c. 4.2 min d. 12.6 min
4. Aphysicalquantityx iscalculatedfromrelationl=(ab)2 c.Ifa,bandcaremeasuredrespectivelywitherrorof
1%,3%and2%,thenthepercentage error incalculation ofx is
a. 4% b. 9% c. 12% d. None of these
C
5.
TwocapacitorshavingcapacityCand areconnectedtoa V voltbattery,asshowninfigure.Thenworkdonein
2
charging boththecapacitors fullyis
C/2 V C
3 1 1
a. CV2 b. CV2 c. 2CV2 d. CV2
4 4 2
6. TheelectricpotentialatapointinfreespaceduetochargeQCoulombisQ ´1011V.Theelectricfieldatthatpoint
is
a. 4p e Q ´1022 V/m b. 4p e Q ´1020 V/m
0 0
c. 12p e Q ´1022 V/m d. 12p e Q ´1020 V/m
0 0
7.
A car accelerates from rest at a constant ratea for some time after which it deaccelerate at constant rateband
finallycomestorest. Iftotal time elapsed isT,thenmaximumvelocity attained bycar is
a. a +b T b. ab T c. a T d. b T
ab a +b a +b a +b
8.
Ifaprotonhavingkineticenergy0.5MeVapproachesagoldnucleus.Then,thedistanceofclosestapproachwill
be(Z =79)
a. 2.3´10-10m b. 2.3´10-14m c. 4.8´10-10m d. 4.8´10-14m
2 37
PRACTICE SET
Q
QuestionBookletCode
9.
The position of a particle moving along x-axis depend on time in accordance with following equation
x =at2 +bt3.Then,dimensions ofaandb are respectively
a. [LT-2];[LT-3] b. [LT-3];[LT-2] c. [LT-2];[LT-2] d. None of these
10.
A ball falling from rest was observed to fall through 78.4 m in 2 s. The time for which it had been falling before
this observation is
a. 5s b. 4s c. 2s d. 3s
11.
IfanX-raystubeoperates at 18kV,thenthemaximumspeed ofelectron striking theanti-cathode is
a. 2 ´107 m/s b. 3´108m/s c. 8´107 m/s d. 8´1010m/s
12.
Lucknowisatadistance of200kmfromDelhi.IfA setsoutfromDelhitoLucknowataspeedof30km/handB
sets outat thesametime fromLucknow toDelhiat aspeed of20km/h.Thetime afterwhich theywillmeetis
a. 2 h b. 3 h c. 4 h d. None of these
13.
WhenachargedparticlemovingwithvelocityvissubjectedtoamagneticfieldofinductionB,theforceonitis
non-zero.Thisimplies that
a. angle between them is either zero or180°
b. angle between them can have any value other than zero or180°
c. angle between them is necessary90°
d. angle between them can have any value other than90°
14.
Thepower factor ofthecircuit showninfigure is
20Ω XL=100Ω
XC=20Ω
40Ω
220V,50Hz
a. 0.2 b. 0.8 c. 0.4 d. 0.6
15.
WhatistheratioofcircumferenceofthefirstBohrorbitfortheelectroninthehydrogenatomtothede-Broglie
wavelength ofelectrons having thesamevelocity at theelectron inthefirst Bohrorbit ofthehydrogen atom?
a. 2:1 b. 1:1 c. 1:4 d. 1:2
16.
Zenerdiode is used for
a. producing oscillation in an oscillator b. amplification
c. stabilisation d. rectification
17.
Whenboronis added asanimpurity tosilicon theresulting material is
a. n-type conductor b. p-type conductor
c. n-type semiconductor d. p-type semiconductor
18.
Thelogic operation performedbythecircuit given hereis
a. NAND b. NOR c. OR d. NOT
19. If a force F =6t2 $i +4t $j is acting on a particle of mass 3kg, then velocity of particle at
t =3s is(att =0,particle is at rest)
a. 2$i + 3$j b. 4$i +6$j c. 18$i +6$j d. None of these
38 AIPMT
Practice Sets
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QuestionBookletCode
20.
Twobodiesarethrownwithsameinitialvelocityatanglesqand(90°-q)withhorizontal.Theratioofmaximum
height attained bythemis
a. sin2q b. cos2q c. tan2q d. 1
21.
Thetemperature ofawire is doubled.TheYoung’smodulusofelasticity ofthegiven wire
a. will also double b. will become four times
c. will remain same d. will decrease
22. If an a particle is moving in a magnetic field of (3$i +2$j)T with a velocity of 5´105 $i m/s.
Themagnetic forceacting ontheparticle willbe
a. 3.2´ 10-13 Ninz-direction b. 3.2 ´10-12 dyne inz-direction
c. 3.2 ´10-13N in negativez-direction d. None of these
23.
If f and f arethefocallengthofaconvexlensforvioletandredlightrespectivelyandF andF arethefocal
v R v R
lengthofaconcave lensforvioletand red light respectively, thenwemusthave
a. f < f andF > F b. f > f andF < F
v R v R v R v R
c. f > f andF > F d. f < f andF < F
v R v R v R v R
24.
Twosoundwaveswithwavelength5mand5.5mrespectivelyarepropagatinginagaswithvelocity330m/s.We
expect thefollowingnumberofbeats persecond.
a. 1 b. 0 c. 6 d. 12
25.
A string is cut into three parts having fundamental frequency n ,n andn respectively. Then, original
1 2 3
fundamentalfrequencynrelated bytheexpression as
1 1 1 1
a. n= n ´ n ´ n b. = + +
1 2 3 n n n n
1 2 3
c. n= n + n + n d. n= n1+ n2 + n3
1 2 3 3
26.
If the magnetic dipole moment of an atom of diamagnetic material, paramagnetic material and ferromagnetic
material ordenoted byM ,M and M respectively, then
d p f
a. Md = 0,Mp ¹ 0 b. Mp = 0,Mf ¹ 0 c. Md ¹ 0,Mp = 0 d. Md = 0,Mf ¹ 0
27.
Forprotecting asensitive equipmentfromtheexternal magnetic field,it shouldbe
a. placed inside an iron can
b. surrounded with fine copper sheet
c. wrapped with insulation around it when passing current through it
d. placed inside analuminiumcan
28. Inapuresilicon(n =1016/m3) crystalsat300K,1021 atomsofphosphorousareaddedpercubicmetre.Thenew
i
holeconcentration willbe
a. 105 per m3 b. 1011per m3 c. 1019per m3 d. 1021per m3
29. Thetorque ofaforceF=-3$i +$j+5k$ acting at thepoint r=7$i +3$j+k$ is
a. 4$i + 4$j +6k$ b. -21$i + 4$j + 4k$ c. -14$i + 34$j -16k$ d. 14$i - 38$j +16k$
30.
ThemassnumberofHeis4andthatofsulphuris32.Theradiusofsulphurnucleusislargerthanthatofhelium
bythefactor of
a. 2 b. 4 c. 8 d. 8
2 39
PRACTICE SET
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31.
Achargeqis enclosed bya Gaussian spherical surface ofradius R.Ifthe radius is doubledthen outward electric
fluxwill
a. be reduced to half b. increase four times
c. remain same d. be doubled
32. The inward and outward electric flux for a closed surface in units of N-m2/C are respectively8´103 N-m2/C
and 4´103 N-m2/C.Then,total charge inside thesurface is
a. 4´103 C b. - 4´103 C c. - (4´103)e C d. - 4´103 C
0
e
0
33.
InDavissonandGermerexperiment,thevelocityofelectronsemittedfromtheelectronguncanbeincreasedby
a. increasing the filament current
b. decreasing the filament current
c. decreasing the potential difference between the anode and filament
d. increasing the potential different between the anode and filament
34.
Ifinacommonemitterconfiguration,transistorhasb=50andinputresistance1kW.IfpeakvalueofinputACis
0.01,thenthepeak valueofcollector current is
a. 500mA b. 250mA c. 0.01mA d. 0.25mA
35.
Inthegivencircuit(asshowninfigure)neglectingsourceresistance,thenvoltmeterandammeterreadingwillbe
V
R=30Ω
X=25Ω X =25Ω
A L C
240V
a. 120 V, 3 A b. 120 V, 6 A c. 0 V, 8 A d. 0 V, 3 A
36.
At what height from above the surface of earth, then value of acceleration due to gravity reduces to half of its
present value(radius ofearth =6400km)
a. 2660.0 km b. 2689.0 km
c. 2559.6 km d. 2649.6 km
37.
The activity of a radioactive substance decreases to one-third of the original activity number N in a period of
0
9yr.Afterafurtherlapseof9yr,its activity willbe
3 N
a. N b. 0 c. N d. None of these
4 0 9 0
38.
Acylindercontaining1moleofgaswascompressedadiabaticallyuntilitstemperaturerisesfrom300Kto370K.
Then,heatproduced inthegas is
(givenr =1.5)
a. 276.7 cal b. 376.7 cal c. 298.5 cal d. 398.5 cal
SpaceforRough Work
40 AIPMT
Practice Sets
Q
QuestionBookletCode
39.
Assuming Bohr model of hydrogen atom. If an electron jumps from first excited state to the ground state of
hydrogen atom.What willbethepercentage change inthespeed ofelectron?
a. 25% b. 50% c. 100% d. 200%
40.
Water is flowing through a frictionless tube having varying cross-sectional area. (as shown in fig.) variation of
pressure p at points alongx-axis is bestrepresented bygraph
p p p p
a. b. c. d.
x x x x
41.
Awirexhasaresistanceof20W.Anotherwireyofsamematerialbutlengthtwicethatofxhasresistanceof8W.
Ifris theradius ofcross-section ofx,thenradius ofcross-section ofyis
r
a. r b. c. 5r d. 2r
2
i
42.
Inthegiven figure,thenmagnetic fieldinduction at pointO willbe
a. m0i b. æçm0i ö÷(p +2) O 2r
2pr è4prø
c. æçm0i ö÷(p +1) d. æçm0i ö÷(p -2)
è4prø è4prø
43.
ThefrequencyoffundamentalnoteinawirestretchedundertensionTisf.Ifthetensionisincreasedto25T,then
thefrequencyofthefundamentalnotewillbe
f
a. 5f b. f c. 25f d.
5
44.
If a glass jar is filled with two non-mixing liquids A and B having densities D and D respectively. A solid
A B
cylinder made of a material of density D is dropped in the jar, it comes to equilibrium position as shown in
C
figure.Whichofthefollowingrelation is true fordensities?
LiquidA
LiquidB
a. D > D > D b. D = D > D
A C B A B C
c. D < D > D d. D > D > D
A C B A C B
45.
If a transformer is used to light a 100 W and 110 V lamp from a 220 V mains. If the main current is 0.5 A, the
efficiency ofthetransformer is approximately.
a. 90% b. 10% c. 30% d. 50%
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QuestionBookletCode
CHEMISTRY
PART B
46.
Determine the time required to 75% complete the first order reaction. If the reaction 20% complete in 10 min.
Choosethecorrect option.
a. 0.233 min b. 62.18 min c. 112.12 min d. 36.18 min
47.
Whichofthefollowingwillundergo fastest elimination togive desired product?
Cl Cl Cl
a. b. c. d.
Cl
48.
If the bond forming entities are dissimilar with different electronegativity. The bond formed has partial ionic
character as the electron pair is attracted by more electronegativity. Such a bond is called polar covalent bond.
Whichofthefollowinghavelowestdegree ofcovalency?
a. NaCl b. MgCl c. AgCl d. CsCl
2
49.
The another name of Nessler’s reagent is ammonia kit is obtained by the reaction of KI with mercuric chloride
and NaOH solution.Whichofthefollowingis knownasNessler’sreagent?
a. K HgI b. K HgI +KOH c. K HgI +Hg d. K HgI +H
2 4 2 4 2 4 2 4 2
50. Numberofunpaired electrons ofNiin[Ni(CN) ]2– is
4
a. 0 b. 1 c. 3 d. 4
51.
Whichofthefollowingis incorrect regarding detergent?
a. Detergent is more better cleansing agent than soap
b. Detergent can be used in hard water also
c. Detergent is soluble in water due to present of long hydrocarbon chain
d. Detergent is insoluble in water due to presence of long hydrocarbon chain
52.
Aspartame is oneofthegoodartificial sweeteners whoseuseis limited tocoldfoodsand softdrinks because
a. It has very low boiling point b. It gets dissociated at cooking temperature
c. It is sweetener at low temperature only d. It is insoluble at high temperatures
53.
Bakelite with low degree ofpolymerisation is used in making glues, in varnishes and lacquers and bakelite with
highdegreeofpolymerisationiswidelyusedformakingelectricalgoods,fountainpenbarrels,combs,etc.Itisan
exampleof
a. condensationpolymerisation b. additionpolymerisation
c. free radicalpolymerisation d. None of these
SpaceforRough Work
42 AIPMT
Practice Sets
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QuestionBookletCode
54.
Whichofthefollowingreagent is used toconvert glucose togluconic acid?
a. H SO b. Br /H O c. HNO d. dil.HCL
2 4 2 2 3
55.
Caprolactum maybeobtained from
a. hexane +cyclohexane b. adipicacid +terphthalicacid
c. adipicacid andhexamethylenediammine d. cyclohexanone+hexamethylenediammine
56.
What willbetheproduct Bin thefollowingreaction?
HBr aqKOH
A B
H2O2
OH OH
a. b. c. d.
OH OH
57.
What will be the product formed when acetone is treated with phenyl magnesium bromide followed by acidic
hydrolysis?
OH
OH OCH
3
a. b. c. OH d.
58.
Phenolis heated with phthalic anhydride in presence of conc.H SO . The product gives pink colour with alkali.
2 4
Theproduct is
a. phenolphthalein b. bakelite
c. salicylic acid d. fluorescein
59.
Product ofthefollowingreaction is
NH
2
CHCOCl
3
Pyridene
HCl
NH2 NH2 NH2 NHCOCH3
COCH
3
a. b. c. d.
COCH
3
COCH
3
60.
Whichreagent willbeusedtocompletebelowconversion?
NH NO
2 2
?
a. KMnO b. H SO
4 2 4
c. PO d. CFCOOOH
2 5 3
2 43
PRACTICE SET
Q
QuestionBookletCode
61.
What is therelation betweenfollowingthesetwoisomers?
COOH COOH
½ ½
H¾C¾OH H¾C¾OH
½ ½
HO¾C¾H H¾C¾OH
½ ½
COOH COOH
a. Enantiomers b. Diastereomers c. Mesomers d. Position isomers
62.
When sodium nitroprusside is added to sodium extract of organic compound it turns pink colouration. This test
confirmpresence of
a. sulphur b. chlorine c. nitrogen d. None of these
63.
Conjugateddienesaremorestablethannon-conjugateddienes(bothisolatedandcomulated)duetofactorssuch
as delocalization of charge through resonance and hybridisation energy. Which of the following compound is
moststable?
a. b. c. d.
64.
What willbetheproduct obtained whenAreacts with heavywater,
Br
Mg/ether A D2O ?
Choosethecorrect option regarding product
D OH OD
a. b. c. d.
65.
TheAsF moleculeis trigonal bipyramidal.Thehybrid orbitals used bytheAsatomsforbonding are
5
a. d ,dz2,s,p,p b. d ,s,p,p,p
x2–y2 x y xy x y z
c. s,p,p,pz,dz2 d. d ,s,p,p
x y x2–y2 x y
66.
Whichofthefollowingpair is isoelectronics?
a. CO andNO b. BF andNH c. NO- andCCl d. NO+andSbH
2 2 3 3 3 4 5
67.
Choosethecorrect order ofradii oftheseisoelectronic species.
a. O-<F-<Na+<Mg2+<Al3+ b. O->F->Na+>Mg2+>Al3+
2 2
c. O->F- <Na+<Mg2+<Al3+ d. F->O->Na+>Al3+>Mg2+
2 2
SpaceforRough Work
44 AIPMT
Practice Sets
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QuestionBookletCode
68.
GoldisachemicalelementwiththesymbolAuandatomicnumber79.Itisusedtomakeornamentalobjectsand
jewellryfourthousands ofyears 18carat goldcontain
a. 75% gold b. 20% gold c. 80% gold d. 38.07% gold
69. Whichofthefollowingorder ofelementis correct regarding 1st ionisation enthalpy?
a. B < C < N < O < F b. B < C < N > O < F
c. B > C > N > O > F d. B > C < N > O > F
70.
When (n–1) d orbitals are used in bond formation, the complex formed is called inner orbital complex.
Sometimes,in place of(n–1)d orbitals, outernd orbitals are used forhybridization. Thecomplexthus formedis
calledouter orbital complexes.Hybridisation involved in[Fe(CN) (H O)]3+ is
5 2
a. sp3d2 b. d2sp3 c. sp3d3 d. None of these
71.
[Co(NH ) Cl ]shows
3 2 2
a. functional isomerism b. geometrical isomerism c. optical isomerism d. structural isomerism
72. Orbitalangularmomentum(L)=–h l(l+1),l= orbitalangularmomentumquantumnumber.Ford-electron,the
angular momentumis
h h h h
a. 6 b. 2 c. d. 2
2p 2p 2p 2p
73.
Consider thereaction equilibrium,
s
2SO (g)+O (g) 2SO (g),DH°=–198KJ
2 2 3
onthebasis ofLe-chatelier’sprinciple, thecondition favourablefortheforward reaction is
a. lowering of temperature as well as pressure b. lowering the temperature and increasing the pressure
c. increasing the temperature and pressure d. any value of temperature and pressure
74.
Distillationisamethodofseparating mixturebasedondifferencesinvolatilityofcomponentsinaboilingliquid
mixture. Whichofthefollowingis purified bydistillation method?
a. Zn b. Al c. Fe d. None of these
75.
ThecompoundAonheatinggivesacolourlessgasandaresiduethatisdissolvedinwatertoobtainB.Excessof
CO is bubbled through aqueous solution of B, C is formed which recovered in the solid form. SolidC on gentle
2
heating gives back A.Thecompoundis
a. CaSO ×2H O b. CaCO c. Na CO d. K CO
4 2 3 2 3 2 3
76.
Amongthefollowingstatement (s)which is/are correct
I. Alkali metal hydrides are less reactive than alkaline earth metal hydrides
II. Alkali metals have more reducing power than alkaline earth metal
III. Alkali metals are more basic than alkaline earth metals
IV. Alkali metal have lowerionisationenergy than alkaline earth metal.
Choosethecorrect choice amongfollowingfourchoices
a. I and II b. only I c. I, II and III d. II, III and IV
77.
Whichofthefollowingstatement is incorrect regarding boric acid?
a. Boric acid has layered structure b. It is prepared byBCl withH O
3 2
c. It is used as mildanticepticin washing eye d. It has square planar structure
78.
Therepeating unit present inasbestos is
a. [Si O ]6- b. [SiO ]4- c. [Si O ]2- d. [Si O ]3-
4 11 4 2 7 3 9