1)
2)
3)
PROFESSIONALEXAMINATIONBOARDPrePolytechnicTest(PPT)2017
18thApril201712:00PM
Topic:Physics
1.moreiftheexperimentisperformedatahighertemperature/,
2.moreifawireofsteelofsamedimensionisused/,
3.moreifthelengthofthewireisincreased/,
4.moreifthelengthofthewireisdecreased/,
CorrectAnswer:
moreifthelengthofthewireisdecreased/,
Acurrentof4.5Aflowsthroughawirein10min.Howmuchchargeflowsthroughthewire?/4.5A10?
1.1500C
2.2000C
3.2500C
4.2700C
CorrectAnswer:
2700C
AlbertEinsteinexplainedwhichphenomenonusingcorpusculartheory?/?
Theoryofrelativity/
4)
5)
6)
1.Theoryofrelativity/
2.Diffraction/
3.Scattering/
4.Photoelectriceffect/
CorrectAnswer:
Photoelectriceffect/
Whatisthedimensionalformulaofangularspeed?/?
1.LT1
2.LT2
3.T1
4.T
5.T1
6.T
CorrectAnswer:
T1
T1
Findthemomentumofabodyofmass200ghavingakinecenergyof10J?/ ,20010?
1.2000kgm/s
2.20kgm/s
3.2kgm/s
4.0.2kgm/s
CorrectAnswer:
2kgm/s
Whichofthefollowingisascalarquantity?/()?
1.Pressure/
2.Impulse/
3.Velocity/
7)
8)
9)
4.Currentdensity/
CorrectAnswer:
Pressure/
WhatistheSIunitofvelocitygradient?/?
1.m/s//
2.s1/1
3.m/s2//2
4.s/m//
CorrectAnswer:
s1/1
Thenumberofturnsoftheprimaryandsecondaryofanidealtransformeris400and2000,respecvely.Ifthecurrentpassingthroughtheprimaryis200Aandthepowerinputoftheprimaryis20kW,thentheoutputvoltageis________./ :4002000200A()20kW,________
1.500V
2.1000
3.2400
4.1600V
CorrectAnswer:
500V
WhichofthefollowingisNOTaconservativeforce?/?
1.Gravitationalforce/
2.Springforce/
3.Frictionalforce/
4.Electrostaticforce/
CorrectAnswer:
Frictionalforce/
10)
11)
12)
13)
Thenumberofelectriclinesofforceemergingfromaclosedsurfaceinvacuumis1.131011.Thechargeenclosedis_________./ ,1.131011_________
1.
2.
3.
4.
CorrectAnswer:
Eddycurrentsareusedin_________,/________
1.transformers/
2.dcmotor/
3.speedometer/
4.powertransmission/( )
CorrectAnswer:
speedometer/
Theratioofintensitiesoftwosoundwavesis16:25.Whatwillbetheratiooftheiramplitudes?/16:25?
1.4:5
2.5:4
3.256:625
4.625:256
CorrectAnswer:
4:5
ThesubstancewhichisaddedtoLPGcylinderswhilefillingsothatanyescapinggascaneasilybedetectedis________________./,,_______________
1.benzene/
2.ethylalcohol/
sodiumacetate/
14)
15)
16)
3.sodiumacetate/
4.ethylmercaptan/
CorrectAnswer:
ethylmercaptan/
Fouridenticalcellshavinginternalresistanceof1.2eachareconnectedinparalleltoanexternalresistanceof6.Theemfofeachcelltodriveacurrentof3Ainacircuitshouldbe______./1.2,63A.._____
1.18V
2.18.5V
3.18.9V
4.20.1V
CorrectAnswer:
18.9V
Whichofthefollowingstatement(s)is/areCORRECTwithrespecttodispersionphenomenon?
1)Refractiveindexforvioletlightismaximum.
2)Deviationproducedinredlightisminimum.
3)Wavelengthofgreenlightisgreaterthanthatofbluelight./
//?
1)
2)
3),
1.Statements1and2only/12
2.Statements1and3only/13
3.Statements2and3only/23
4.Alltheabovestatements/
CorrectAnswer:
Alltheabovestatements/
Whatwillbetheangleofrefractionwhenarayoflightpassesfromglasstoair?/,?
Greaterthanangleofincidence/
17)
18)
19)
1.Greaterthanangleofincidence/
2.Smallerthanangleofincidence/
3.Equaltoangleofincidence/
4.Equalto90/90
CorrectAnswer:
Greaterthanangleofincidence/
WhenbothinputsofaNANDgatearethesame,itisequivalentto_______./''(NAND),______
1.NOTgate/NOT
2.ORgate/OR
3.ANDgate/AND
4.NORgate/NOR
CorrectAnswer:
NOTgate/NOT
Calculatethewavelengthofsoundwavewhosefrequencyis550Hzandspeedis440m/sinagivenmedium./ ,550440/
1.0.125m/0.125
2.1.25m/1.25
3.12.5m/12.5
4.125m/125
CorrectAnswer:
1.25m/1.25
WhentheamountofworkisdonetobringanobjectclosertotheEarth,gravitaonalpotenalatapoint________________./,_______________
1.isalwaysapositivequantity/
2.isalwaysanegativequantity/
3.canbepositiveornegativebasedontheheightfromtheearth/
isalwayszero/
20)
21)
22)
4.isalwayszero/
CorrectAnswer:
isalwaysanegativequantity/
Aboxermoveshisheadbackwardswhentheopponentgivesapunchtohisheadsoasto_____________./,,_______________
1.increasethemomentumanddecreasetheforce/
2.increasethecontacttimewhichdecreasetheforce/
3.decreasethecontactmewhichincreasetheforce/
4.increasetheimpulse/
CorrectAnswer:
increasethecontacttimewhichdecreasetheforce/
Forconstructiveinterferencetotakeplacebetweentwomonochromaticlightwavesofwavelengthlambda,thepathdifferenceshouldbe_______./,_______
1.
2.
3.
4.
CorrectAnswer:
BoltzmansconstantkBisgivenbytherelation:/kB:
Risuniversalgasconstant/R
NAvogadronumber/N
1.R/N
23)
24)
25)
2.N/R
3.RN
4.N2/R
CorrectAnswer:
R/N
Thenumberofelectronsin1Cchargeis____________./1C ___________
1.6.251020
2.6.251018
3.2.65108
4.5.05108
CorrectAnswer:
6.251018
WhichoneofthegivenarrangementsisCORRECTaboutfriction?/?
1.Rollingfriction
26)
27)
28)
Ramuplacedapieceofirononthesurfaceofwater.Itsankinthewaterbecause________________./,_________
1.thedensityofironismorethanthedensityofwater/,
2.thedensityofironislessthanthedensityofwater/,
3.thebuoyantforceexertedbyfluidismorethanweightofironpiece/,
4.weightofthedisplacedwaterwillbemorethantheweightofthepieceofiron/,
CorrectAnswer:
thedensityofironismorethanthedensityofwater/,
Theabsolutetemperatureofagasismade4timesitsoriginalvalue.Thenthespeedofsoundinitbecomes____________./,__________
1.doubled/
2.fourtimes/
3.threetimes/
4.remainsthesame/
CorrectAnswer:
doubled/
WhichofthegivenstatementisINCORRECTfortheseriesLCRcircuitatresonance?/LCR,?
1.
2.Circuitispurelyresistive/
3.Inductiveandcapacitivereactanceareequal/
4.
5.
6.
CorrectAnswer:
29)
30)
31)
Theradiiofcurvatureofadoubleconvexlensare20cmand40cm,respectively,anditsfocallength=20cm.Therefractiveindexofthematerialofthelensis_______./:204020______
1.3/5
2.5/3
3.4/3
4.5/4
CorrectAnswer:
5/3
A5kgmassispulledbytwoperpendicularforces3Nand4N.Themagnitudeofitsaccelerationis_________./5,3N4N________
1.7N/s2
2.1m/s2
3.0N.s
4.5m/s2
CorrectAnswer:
1m/s2
Thecolorthatdeviatestheleastwhenpassingthroughaprismis________./,,______
1.violet/
2.yellow/
3.indigo/
4.red/
CorrectAnswer:
red/
32)
33)
34)
35)
Atransformerisconnectedtoa240Vacmainanditisgivenasupplyof6Vtoringadoorbell.Thenumberofturnsinprimarycoilis4800.Howmanyturnsdoesthesecondarycoilhave?/ 240V6V4800?
1.110turns/110
2.120turns/120
3.130turns/130
4.140turns/140
CorrectAnswer:
120turns/120
Areaundervelocitymegraphofanobjectmovinginastraightlinerepresents________________./____________
1.distancecoveredbythebody/
2.displacementcoveredbythebody/
3.averagevelocityduringatimeinterval/
4.accelerationofthebody/
CorrectAnswer:
displacementcoveredbythebody/
1.10V
2.10V
3.5V
4.5V
CorrectAnswer:
10V
Calculatetheforcerequiredtoproduceanacceleraonof2m/s2inanobjectofmass5kg./52/2
1.3N
36)
37)
38)
2.5N
3.7N
4.10N
CorrectAnswer:
10N
Aphotonofhighestfrequencyisemittedinwhichoneofthefollowingtransitions?/,?
1.n=1ton=2/n=1n=2
2.n=2ton=1/n=2n=1
3.n=2ton=6/n=2n=6
4.n=6ton=2/n=6n=2
CorrectAnswer:
n=2ton=1/n=2n=1
AandBaretwoneutralbodieshavingsamemass.Whentheyarerubbedagainsteachother,AbecomespositiveandBbecomesnegative.WhichofthefollowingstatementisCORRECT,afterrubbing?/,,?
1.MassofA>MassofB/>
2.MassofB>MassofA/>
3.BothAandBhavethesamemass/
4.BothAandBhavethesameweight/
CorrectAnswer:
MassofB>MassofA/>
Apointsourceoflightiskeptinfrontofaconvexmirrorwhichhasaradiusofcurvature60cm.Theimageisformed15cmbehindthemirror.Theobjectdistancewillbe_______________./60,15____________
1.15cmbehindthemirror/15
2.15cminfrontofthemirror/15
3.30cminfrontofthemirror/30
30cmbehindthemirror/ 30
39)
40)
41)
4.30cmbehindthemirror/30
CorrectAnswer:
30cminfrontofthemirror/30
Whiledrawingwaterfromawell,thebucketofwaterappearstobeheavierwhenitcomesoutofwaterbecause______________./,,,_______
1.thereisnoupthrustduetowater/
2.thegravitaonalpullismoreoutsidethewater/,
3.thebuoyantforcereversesitsdireconasitcomesoutofwater/
4.oftherelavedensity/
CorrectAnswer:
thereisnoupthrustduetowater/
Huygensprincipleofsecondarywavelengthscannotbeusedto_____________./_____________
1.findvelocityoflightinamedium/
2.findthenewpositionofawavefront/
3.explainlawsofreflection/
4.explainSnellslaw/
CorrectAnswer:
findvelocityoflightinamedium/
Theaccelerationtimegraphforabodymovingwithuniformaccelerationis__________________./_______________
1.astraightlineparalleltothetimeaxis/
2.astraightlineparalleltotheaccelerationaxis/
3.astraightlineinclinedtothetimeaxis/
4.astraightlineinclinedtotheaccelerationaxis/
CorrectAnswer:
astraightlineparalleltothetimeaxis/
42)
43)
44)
45)
Amovingcarisbroughttorestwithin10sbyapplyingbrake.Findtheinialvelocityifthe
retardaonduetobrakeis5m/s2./105/2,
1.0.5m/s/0.5/
2.2m/s/2/
3.50m/s/50/
4.50m/s/50/
CorrectAnswer:
50m/s/50/
Thegravitaonalforcebetweentwoobjectsdoesnotdependon__________./________
1.sumofthemasses/
2.productofthemasses/
3.themediumbetweentheobjects/
4.distancebetweenthemasses/
CorrectAnswer:
sumofthemasses/
Asourceofpower2kWproduces1020photons,theradiationobtainedis_______./2,1020,________
1.IRrays/
2.UVrays/
3.Xrays/
4.Microwaves/
CorrectAnswer:
Xrays/
Theescapevelocityofabodyonthesurfaceofaplanetdependson_______________./___________
1.themassofthebody/
2.theangleofprojection/
themassoftheplanet/
46)
47)
48)
3.themassoftheplanet/
4.theshapeofthebody/
CorrectAnswer:
themassoftheplanet/
Asemiconductorisconnectedintheleftgapandametalwireisconnectedintherightgapofametrebridge.Thebalancepointisdetermined.Botharenowheatedsothatchangeinresistanceissame,thenthebalancepointwill_____________./,,,,__________
1.shifttowardsleft/
2.shifttowardsright/
3.dependonmetal/
4.dependontemperature/
CorrectAnswer:
shifttowardsleft/
Whenabodyisinacceleratedmoon,thedistancemegraphisa______________./,______________
1.straightlineinclinedtomeaxis/
2.straightlineparalleltomeaxis/
3.curvedline/
4.straightlineparalleltothedistanceaxis/
CorrectAnswer:
curvedline/
Whathappensifthereisashortcircuit?/( )?
1.Thecurrentinthecircuitreducesdrastically./
2.Therewillbenochangeinthecurrent./
3.Therewillbecontinuousvariationofcurrent./
4.Thereislargeincreaseincurrent./
CorrectAnswer:
Thereislargeincreaseincurrent./
49)
50)
1)
WhatwillbethemagneticfieldatthecentreofacircularcoilofnturnsandradiusrcarryingacurrentI?/nr,I, ?
1.
2.
3.
4.
CorrectAnswer:
Aboyreceiveshisecho5secondslater.Findthedistanceofthereflecngsurfacefromtheboy.Thespeedofsoundinair=342m/s./5=342/
1.1710m/1710
2.855m/855
3.67m/67
4.28.5m/28.5
CorrectAnswer:
855m/855
Topic:Chemistry
WhichoneofthefollowingalkalimetalsreactsdirectlywithnitrogenpresentinairtoformM3N?/,M3N ?
1.Sodium/
2.Lithium/
3.Potassium/
4.Caesium/
CorrectAnswer:
Lithium/
2)
3)
4)
5)
Whichoneofthefollowingpolymersispreparedfromcaprolactam?/,?
1.Nylon6,6/6,6
2.Nylon6/6
3.Nylon6,10/6,10
4.Nylon6,11/6,11
CorrectAnswer:
Nylon6/6
Idenfythesubstancethatisusedasaninsulatorinelectricalwires./,
1.Lead/
2.Iron/
3.PVC/
4.Bakelite/
CorrectAnswer:
PVC/
Solventexchangemethodisusedfortheseparationof__________./________
1.sulphurfromalcohol/
2.sulphurdioxidefromhydrogenchloride/
3.sodiumchloridefromammoniumchloride/
4.potassiumnitratefromsodiumchloride/
CorrectAnswer:
sulphurfromalcohol/
WhichoneofthefollowingmethodsissuitablefortheremovalofC andS presentinnaturalgas?/CO2SO2,?
1.Liquefaction/
2.Adsorption/
Absorptioninalkalinesolution/
6)
7)
8)
3.Absorptioninalkalinesolution/
4.Absorptioninacidicsolution/
CorrectAnswer:
Absorptioninalkalinesolution/
Afarmertreatshissoilwithquicklimeforbeeryield.Thisisbecausethenatureofthesoilistoo_________./________
1.acidic/
2.basic/
3.sandy/
4.loamy/
CorrectAnswer:
acidic/
Theelectrondistributionofasiliconatomis____________./ __________
1.2,8,4
2.2,8,3
3.2,5,8
4.2,3,8
CorrectAnswer:
2,8,4
WhatwouldbethenumberofmolesofH2O2requiredtobringaboutdecolourisationof0.5molesofacidifiedpotassiumpermanganate?/0.5H2O2?
1.5/2moles/5/2
2.2.5/2moles/2.5/2
3.1/2moles/1/2
4.3/2moles/3/2
CorrectAnswer:
2.5/2moles/2.5/2
9)
10)
11)
12)
Atthelimitingvalueofradiusratior+/ris:/r+/r:
1.Forcesofattractionarelargerthantheforcesofrepulsionbetweentheions/,
2.Forcesofattractionaresmallerthantheforcesofrepulsionbetweentheions/,
3.Forcesofattractionandrepulsionareequalbetweentheions/
4.Forcesofattractionandrepulsionbetweentheionsareunaffected./
CorrectAnswer:
Forcesofattractionandrepulsionareequalbetweentheions/
TwosubstancesAandBarecombinedtogethertoformaproductP.AandBcannotbebrokendownintosimplersubstances.IdentifytheINCORRECTstatement./ABPAB
1.Pisacompound/P
2.AandBareelements/AB
3.Phasfixedcomposition/P
4.AandBarecompounds/AB
CorrectAnswer:
AandBarecompounds/AB
Whichoneofthefollowingmixturescanbeseparatedbyusingalcoholassolvent?/?
1.Saltandsand/
2.Sugarandsalt/
3.Sulphurandsand/
4.Saltandsulphur/
CorrectAnswer:
Sugarandsalt/
13)
14)
15)
Inacarboxylicacidwith3carbonatomsand6hydrogenatoms,idenfyitscorrectformulafromtheoponsbelow./36 ,
1.CH3COOCH3
2.CH3COOH
3.CH3CH2COOH
4.C2H5CHO
CorrectAnswer:
CH3CH2COOH
Theoxideoreamongthefollowingis____________./_________
1.Zincblende/
2.Cinnabar/
3.Bauxite/
4.Hornsilver/
CorrectAnswer:
Bauxite/
Whichoneofthefollowingacidscandecolourisepurplecolouredpotassiumpermanganate?/,?
1.Carbonicacid/
2.Sulphuricacid/
3.Hydrochloricacid/
4.Citricacid/
CorrectAnswer:
Citricacid/
3.0Jofenergyisproducedbyacertainlightradiationcontaining61018photons.Whatisthewavelengthofthislightradiation?/3.06x1018?
1.397.6A
16)
17)
18)
2.3614A
3.3976A
4.39.76A
CorrectAnswer:
3976A
IntheThomson'smodelofatom,whichofthefollowingstatementsareINCORRECT?/,?
(i)Electronsareembeddedinthepositivelychargedsphere./ ,:
(ii)Atomiselectricallyneutral./
(iii)Positiveandnegativechargesareequalinmagnitude./
(iv)Stabilityoftheatomisduetotheattractionbetweenelectrons./,
1.(i)and(iii)/(i)(iii)
2.(ii)only/(ii)
3.(i),(ii)and(iii)/(i),(ii)(iii)
4.(iv)only/(iv)
CorrectAnswer:
(iv)only/(iv)
DesignationofthepatternasABABABofsuccessiveverticallayersofidenticalatomsgivesthearrangementcalledas______________./ABABAB______________
1.hexagonalclosepacking/
2.cubicclosepacking/
3.facecentredcubic/
4.bodycentredcubic/
CorrectAnswer:
hexagonalclosepacking/
19)
20)
21)
CisasolubleacidicoxideandDisasolublebase.EispurewaterandFisNaClsoluon,whichoneofthemwouldbehavingthevalueofpHlessthan7?/CDEFNaClpH7,?
1.C
2.D
3.E
4.F
CorrectAnswer:
C
Whichofthefollowingisacombinaonreacon?/?
1.
2.
3.
4.
CorrectAnswer:
Whichoneofthefollowingacidscanbeusedinthepreparationofketonesthroughdecarboxylation?/,?
1.ketoacids/
2.ketoacids/
3.hydoxyacids/
4.hydroxyacids/
CorrectAnswer:
ketoacids/
Whattypeofreaconisrepresentedbelow?/?
1.Displacementreacon/
22)
23)
24)
2.Combinaonreacon/
3.Doubledisplacementreacon/
4.Decomposionreacon/
CorrectAnswer:
Displacementreacon/
EthylenechlorideandethylidenechlorideareisomericcompoundsbutthestatementwhichisNOTtrueforboththecompoundsis:/,:
1.Bothofthemreactwithaqueouspotashandgivethesameproduct./
2.BothofthemgiveBeilsteinstest./
3.Bothofthemreactwithalcoholicpotashandgivethesameproduct./
4.Bothofthemarederivativesofethane./
CorrectAnswer:
Bothofthemreactwithaqueouspotashandgivethesameproduct./
Calculatethenumberofcopperatomsina8.5cmlongcopperwirewhichhasamassof6.4g(relativeatomicmassofcopperis63.55)./6.48.5(63.55)
1.6.034
2.0.6103
3.6.062
4.0.6304
CorrectAnswer:
6.062
Nettleplantcausespainfulstingsduetomethanoicacidsecretedbythem.Whichoneofthefollowingsubstancescanbeusedtorelievethepain?/?
1.Limejuicewhichisacidic/,
2.LeafofadockplantwhichgivesasolutionhavingpH9/,9
25)
26)
27)
3.SaltsoluonwithpH7/7
4.Waterwhichisneutral/,
CorrectAnswer:
LeafofadockplantwhichgivesasolutionhavingpH9/,9
Afullychargedbatterycontains1litreof5.00MH2SO4.TheconcentrationofH2SO4inthebatteryafter2amperesofcurrentisdrawnfrombatteryfor10hourswillbe________./5.00MH2SO4110 2 H2SO4_______
1.0.816M
2.4.6M
3.8.16M
4.0.46M
CorrectAnswer:
4.6M
Reactionofdiazoniumsaltswitharomaticaminesinmildlyacidicsolutiontoformcoloredsubstancesisanexampleof_____________./,___________
1.polymerizationreaction/
2.oxidationreaction/
3.additionreaction/
4.condensationreaction/
CorrectAnswer:
condensationreaction/
90Th232undergoesradioactivedisintegrationinaseriesofstepsandlosesatotalof4particles
and6particles.Whatisthefinalisotopeproducedintheseries?/90Th232,46?
1.82Pb206
2.82Pb208
28)
29)
30)
3.82Pb209
4.83Bi209
CorrectAnswer:
82Pb208
Asubstancewhichisaboveitscriticaltemperature____________./,__________
1.canbeliquefiedbyincreasingthepressure/
2.willexistasasolid/
3.willexistasaliquid/
4.willexistasagasatanypressure/
CorrectAnswer:
willexistasagasatanypressure/
pElectronsofthehalogenareNOTinvolvedindelocalizationforwhichoneofthefollowingcompounds?/,p ?
1.Chlorobenzene/
2.Vinylchloride/
3.Ethylbromide/
4.Bromobenzene/
CorrectAnswer:
Ethylbromide/
Detergentsaremoreeffecveinhardwaterthansoapbecause___________./(),____________
1.ammoniumionsinthedetergentformprecipitatewithhardwater/()
2.calciumionsinthehardwaterdonotformprecipitatewithdetergents/()
3.sulphonateionsinthedetergentformprecipitatewithhardwater/(),
magnesiumionsinthehardwaterformprecipitatewithdetergents/,
31)
32)
33)
4.magnesiumionsinthehardwaterformprecipitatewithdetergents/,()
CorrectAnswer:
calciumionsinthehardwaterdonotformprecipitatewithdetergents/()
Whichofthefollowingisaveryreactivenonmetalstoredunderwater?/?
1.Sulphur/
2.Sodium/
3.Phosphorus/
4.Mercury/
CorrectAnswer:
Phosphorus/
Potatochipsmanufacturersfillthepacketsofchipswithnitrogengas.Itisbecausenitrogengashas:/ :
1.noreacvityanddoesnotfavourrancidity/
2.morereacveandfavoursrancidity/
3.moderatereacvity/
4.favoursrancidity/
CorrectAnswer:
noreacvityanddoesnotfavourrancidity/
Sulphurformsapolyatomicringwitheightatoms.Whichpropertyoftheelementfacilitatesthis?/,?
1.Covalency/
2.Combiningcapacity/
3.Catenaon/
4.Electronicconfiguraon/
34)
35)
36)
37)
CorrectAnswer:
Catenaon/
WhichoneofthefollowinggivesCO2onheang?/CO2?
1.Milkofmagnesia/
2.Slakedlime/
3.Sodiumcarbonate/
4.Limestone/
CorrectAnswer:
Limestone/
InFreundlichadsorponisotherm,thevalueof1/nis___________./,1/n_________
1.1incaseofphysicaladsorpon/1
2.1incaseofchemicaladsorpon/1
3.between0and1inallcases/01
4.between0and1incaseofchemicaladsorption/01
CorrectAnswer:
between0and1inallcases/01
Namethemoleculewhichcontainsadoublebondfromthefollowing?/?
1.Nitrogen/
2.Ethyne/
3.Propene/
4.Cyclohexane/
CorrectAnswer:
Propene/
Arrangethefollowinggasesintheincreasingorderofnumberofmolecules:
4gofoxygen,2gofhydrogen,4gofnitrogen,and2gofchlorine
38)
39)
40)
/:
4,2 ,4 ,2
1. , , ,
2. , , ,
3. , , ,
4. , , ,
CorrectAnswer:
, , ,
Theenergyofmolecularmotionistermedas_____________./_________
1.chemicalenergy/
2.potentialenergy/
3.friction/
4.kineticenergy/
CorrectAnswer:
kineticenergy/
Whichofthefollowingalkenes,1moleofwhichistobetaken,onozonolysiswillgiveonly2molesofanaldehydewithamolarmassof44g/mol?/,144/2?
1.2Pentene/2
2.1Butene/1
3.2Butene/2
4.Propene/
CorrectAnswer:
2Butene/2
Theformationofcyanohydrinfromacarbonylcompoundisanexampleof__________./ __________
1.electrophilicaddition/
41)
42)
43)
2.nucleophileaddition/
3.electrophilicsubstitution/
4.nucleophilesubstitution/
CorrectAnswer:
nucleophileaddition/
Onemoleofacarbonisotopewithahalflifeof10daysdecaystogiveonemoleofhelium.If1.0gmatomoftheisotopeiskeptinasealedtube,howmuchheliumwillaccumulatein20days?/101.0,20?
1.gmatom/
2.gmatom/
3.gmatom/
4.1gmatom/1
CorrectAnswer:
gmatom/
Whatisthemassof1.5moleofoxygenmolecule?/1.5?
1.16g/16
2.24g/24
3.32g/32
4.48g/48
CorrectAnswer:
48g/48
Electromagneticwavestransport_________./ _________
1.charge/
2.energy/
3.frequency/
4.wavelength/
44)
45)
46)
47)
CorrectAnswer:
energy/
Whatisthestrengthingm/litof40volumesolutionofperhydrol?/ 40/?
1.130.8gm/130.8
2.60.71gm/60.71
3.38.08gm/38.08
4.121.4gm/121.4
CorrectAnswer:
121.4gm/121.4
ThreeelementsX,YandZformDobereinerstriad.IftheatomicmassesofXandZare35and126,respecvely,whatwillbethepredictedatomicmassofY?/X,YZXZ:35126,Y?
1.100
2.80
3.217
4.90
CorrectAnswer:
80
0.915gofasampleofchlorineoxideproduced0.355gofchlorineoncompletedecomposition.Calculatethemassofoxygenitwouldyield./0.9150.355
1.1.27g/1.27
2.0.33g/0.33
3.0.56g/0.56
4.0.68g/0.68
CorrectAnswer:
0.56g/0.56
ThemetalwhichisrefinedbyMondsprocessis___________./
48)
49)
50)
ThemetalwhichisrefinedbyMondsprocessis___________./,_________
1.nickel/
2.tanium/
3.copper/
4.zinc/
CorrectAnswer:
nickel/
Gasesmaybedescribedasanyofthefollowingexceptone.IdentifytheINCORRECTdescription./,
1.Highlycompressible/
2.Readilydiffusing/
3.Fluids/
4.Immiscible/
CorrectAnswer:
Immiscible/
Alcoholscanbeproducedbythehydraonof___________./_________
1.alkynes/
2.acids/
3.alkenes/
4.alkanes/
CorrectAnswer:
alkenes/
ThetemperatureandpressureatChennaiare35Cand750mmHg,respectively,whereasatOotytheseare15Cand700mmHg,respectively.WhatwouldbetheratioofdensitiesofairatChennai(d1)andOoty(d2)?/:350C750mmHg,
:150C700mmHg(d1)(d2)?
1.d1/d2=0.998
1)
2)
2.d1/d2=1.00
3.d1/d2=2.05
4.d1/d2=1.55
CorrectAnswer:
d1/d2=1.00
Topic:Maths
1.a=3,b=4
2.a=4,b=2
3.a=1,b=2
4.a=4,b=3
CorrectAnswer:
a=4,b=2
1.8cm,6cm/8,6
2.7cm,4cm/7,4
3.6cm,9cm/6,9
4.8cm,5cm/8,5
CorrectAnswer:
6cm,9cm/6,9
3)
4)
5)
6)
1.2817
2.2718
3.2187
4.2871
CorrectAnswer:
2187
Thediameterofacircularplaygroundis70m.Finditscircumference./70
1.110m/110
2.440m/440
3.220m/220
4.170m/170
CorrectAnswer:
220m/220
If thenn=______./ n=______
1.5
2.6
3.7
4.4
CorrectAnswer:
6
1.1
2.1
7)
8)
9)
3.2
4.2
CorrectAnswer:
1
1.independent/
2.dependent/
3.mutuallyexclusive/
4.independentandmutuallyexclusive/
CorrectAnswer:
independent/
1.2
2.1
3.0
4.3
CorrectAnswer:
3
Whatisthemeanofthefirstninenaturalnumbers?/?
1.5
2.8
3.7
4.4
CorrectAnswer:
10)
11)
12)
5
1.sinx+cosx
2.ex(sinx+cosx)
3.sinx
4.cosx
CorrectAnswer:
sinx+cosx
PerpendiculardistanceofthepointP(a,b,c)fromxaxisis__________./xP(a,b,c)________
1.
2.
3.
4.
CorrectAnswer:
Amarriagehallis40mlongand25mwide.80m2istheareaofthestageinit.Howmuchareaisleftoutfortheseatingarrangement?/402580?
1.450m2/450
2.92m/92
3.900m2/900
4.920m2/920
CorrectAnswer:
920m2/920
13)
14)
15)
If ,then ________./ , ________
1.52
2.51
3.50
4.49
CorrectAnswer:
51
Theratioofthesumandtheproductofthezerosofthequadraticpolynomialf(x)=4x220x+9is_____./f(x)=4x220x+9__________
1.20:9
2.5:4
3.4:9
4.1:5
CorrectAnswer:
20:9
1.28
2.24
3.17
4.32
CorrectAnswer:
32
16)
17)
18)
1.
2.tan2x+tanx+C
3. +C
4.Noneoftheabove/
5.
6.Noneoftheabove/
CorrectAnswer:
+C
Solutionoftheequation is___________./________
1.
2.
3.
4.
CorrectAnswer:
dx=_________
1.0
2.
3.
4.Noneoftheabove/
CorrectAnswer:
19)
20)
21)
1.
2.
3.
4.
CorrectAnswer:
=_________.
1.
2.
3.3
4.
CorrectAnswer:
Howmanylinesofsymmetrycanbedrawninanequilateraltriangle?/?
1.4
22)
23)
24)
2.2
3.3
4.1
CorrectAnswer:
3
Points(2,1),(3,4)and(2,3)formtheverticesofa/an____________./(2,1),(3,4)(2,3)_______
1.equilateraltriangle/
2.isoscelestriangle/
3.scalenetriangle/
4.rightangledtriangle/
CorrectAnswer:
isoscelestriangle/
Setofallpointsinthecomplexplanewhoseabsolutevalue4representsa__________./,4,_________
1.circlewithcentre(0,0)andradius4units/ (0,0)4
2.circlewithcentre(0,0)andradius2units/ (0,0)2
3.parabolawithvertex(0,0)andfocus(4,0)units/(0,0), (4,0)
4.parabolawithvertex(0,0)andfocus(0,4)units/(0,0), (0,4)
CorrectAnswer:
circlewithcentre(0,0)andradius4units/ (0,0)4
1.1squnit/1
2.2squnits/2
3.3squnits/3
4.4squnits/4
CorrectAnswer:2squnits/2
25)
26)
27)
2squnits/2
Ifcoefficientof in is1215,thenk=_______./ 1215,k=__________
1.14
2.15
3.16
4.17
CorrectAnswer:
15
1.
2.
3.
4.
CorrectAnswer:
=_________
1.
2.1
3.
4.
5.
CorrectAnswer:
28)
29)
30)
1
Ifsumof3termsofanarithmeticprogressionis102.Theratioofthegreatesttermto
theleasttermis ,thenthecommondifferenceis_________./
102 ,________
1.7
2.10
3.8
4.9
CorrectAnswer:
10
1.2
2.2
3.1
4.0
CorrectAnswer:
2
Thelargestpositiveintegerthatwilldivide47and75leavingremainders5and3respectively,is_____./________,4775:53
1.8
2.3
3.6
4.9
CorrectAnswer:
6
31)
32)
33)
34)
Thecapacityofahemisphericaltankis155.232l.Finditscurvedsurfacearea./155.232
1.23502cm2/235022
2.25500cm2/255002
3.11088cm2/110882
4.16042cm2/160422
CorrectAnswer:
11088cm2/110882
Findtheratioinwhichthepoint(1,2)dividesinternally,thelinesegmentjoiningthepoints(2,5)and(5,2)is________./________,(2,5)(5,2)(1,2)
1.1:2
2.4:1
3.3:4
4.2:5
CorrectAnswer:
3:4
Thegreatestnumberof4digitswhichisdivisiblebyeachoneofthenumbers18,81and108is_____./_____,18,81108
1.9999
2.9758
3.9720
4.9940
CorrectAnswer:
9720
35)
36)
37)
1.42
2.2
3.1+
4.
CorrectAnswer:
42
IfP ,then ________./P ,________
1.7
2.8
3.4
4.6
CorrectAnswer:
8
Seventimesatwodigitnumberisequaltofourtimesthenumberobtainedbyreversingtheorderofthedigits,andthesumofthedigitsofthenumberis6.Findthedigitinten'splaceoftheoriginalnumber./,,6
1.4
2.3
3.6
4.2
CorrectAnswer:
2
1.
38)
39)
40)
2.
3.
4.
CorrectAnswer:
1.
2.1
3.2
4.Noneoftheabove/
CorrectAnswer:
1
1.
2.
3.
4.Noneoftheabove/
CorrectAnswer:
Ifnthtermofanarithmeticprogressionis83n,thenitscommondifferenceis_______./n83n,________
1.3
2.3
41)
42)
43)
3.2
4.2
CorrectAnswer:
3
Argumentof is_____./ ______
1.
2.
3.
4.
CorrectAnswer:
Ifintheexpansionof ,theratioofthecoefficientof2ndand3rd
termsand3rdand4thterms,respectively,areequal,thenn=______./
,:,n=________
1.5
2.4
3.3
4.6
CorrectAnswer:
5
ThefirsttermofanArithmeticprogressionis3.Ifthesumofitsfirst4termsis14lessthanthesumofits6thand7thterms,thenthe5thtermis_____./34,14,5__________
1.16
2.18
44)
45)
46)
3.23
4.19
CorrectAnswer:
19
1.6
2.
3.
4.
CorrectAnswer:
1.
2.
3.
4.
CorrectAnswer:
47)
48)
49)
=__________.
1.
2.
3.
4.
CorrectAnswer:
Ifthesumoffirst'n'termsofanarithmeticprogressionisgivenbysn=2n2+5n,thenthenth
termoftheA.P.is_____./nsn=2n2+5n,
n_____
1.4n+3
2.2n1
3.6n7
4.3n+2
CorrectAnswer:
4n+3
Iftworegressioncoefficientsare0.8and0.2,thenthevalueofcoefficientofcorrelationis_____./0.80.2,__________
1.0.8
2.0.6
3.0.4
4.0.2
CorrectAnswer:
0.4
50)
TheratioofareasoftwosquaresAandBare4:25.IfthesideofthesquareAis6m,whatisthemeasureofthesideofsquareB?/AB4:25A6B?
1.256m/256
2.15m/15
3.12m/12
4.32m2/32
CorrectAnswer:
15m/15
Twoisoscelestriangleshaveequalverticalanglesandiftheirareasareintheratio36:49,thentheratiooftheircorrespondingmediansis______./()36:49,______
1.4:7
2.6:1
3.6:7
4.7:4
CorrectAnswer:
6:7