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T.MUNIRAJP.G.TInChemistry;GovtModelHrSecSchool;Palacode;Dharmapuri.CELL:9942917317

T.MUNIRAJPGT(C)GOVTMODELHRSECSCHOOLPALACODEDHARMAPURI9942917317Page1

(H.SC(+1)CHEMISTRY BOOKBACK (OT)

1.CHEMICALCALCULATIONS1.Thevolumeoccupiedby16gofoxygenatS.T.P.a)22.4L b)44.8L c)11.2L d)5.6L

2.Avogadaro'snumberrepresentsthenumberofatomsina)12gofC12 b)320gofS c)32gofOxygen d)12.7gofiodine.

3.Thevalueofgram molecularvolumeofozoneatS.T.Pisa)22.4L b)2.24L c)11.2L d)67.2L

4.Thenumberofatomspresentin0.5gram-atomsofNitrogenissameastheatomsina)12gofC b)32gofS c)8goftheoxygen d)24gofmagnesium.

5.Thenumberofgram-atomsofoxygenin128gofoxygenisa)4 b)8 c)128 d)8x6.02x1023

6.Thetotalnumberofmolespresentin111gofCaCl2isa)Onemole b)Twomoles c)Threemoles d)Fourmoles

7.Whichofthefollowingweighsthemost?a)Onegram-atom ofN2 b)Onemoleofwaterc)OnemoleofSodium d)OnemoleculeofH2SO4

8.Whichofthefollowingcontainssamenumberofcarbonatomsasarein6.0gofcarbon(C-12)?a)6.0gethaneb)8.0gmethanec)21.0gPropaned)28.0gCO

9.Whichofthefollowingcontainsmaximum numberofatoms?a)2.0ghydrogen b)2.0goxygen c)2.0gnitrogen d)2.0gmethane

10.Whichoneamongthefollowingisthestandardforatomicmass?a)1H1 b) 6C12 c)6C14 d)8O16

11.Whichofthefollowingpairofspecieshavesamenumberofatomsundersimilarconditions?a)1LeachofSO2andCO2 b)2LeachofO3andO2

c)1LeachofNH3andCl2 d)1LeachofNH3and2LofSO2

12.2.0gofoxygencontainsnumberofatomssameasina)4gofS b)7gofnitrogen c)0.5gofH2 d)12.3gofNa

13.Thenumberofgm-moleculesofoxygenin6.02x1024COmoleculesisa)1gm-molecule b)0.5gm-molecule c)5gm-molecule d)10gm-molecule

14.HydrogenphosphateofcertainmetalhasaformulaMHPO4,theformulaofmetalchlorideisa)MCl b)MCl3 c)MCl2 d)MCl4

15.Acompoundcontains50%ofX(atomicmass10)and50%Y(at.mass20).Whichformulatepertaintoabovedate?

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a)XY b)X2Y c)X4Y3 d)(X2)3Y3

16.Whichofthefollowingcompoundhas/havepercentageofcarbonsameasthatinethylene(C2H4)?a)propene b)Cyclohexane c)Ethyne d)Benzene

17.5Lof0.1M solutionofsodium Carbonatecontainsa)53gofNa2CO3 b)106gofNa2CO3 c)10.6ofNa2CO3 d)5x102millimolesofNa2CO3

B.Fillintheblanks1.Onemoleofatriatomicgascontains36.02x1023 atoms.2.OnemoleofSulphuricacidcontains46.02x1023 Oxygenatoms.3.11.2LofcarbondioxideatS.T.Pcontains6.02x1023 oxygenatoms.4.EqualvolumesofdifferentgasesundersimilarconditionsoftemperatureandpressurecontainequalnumberofMolecules5.AdecimolarsolutionofNaOHcontainsof4gram ofNaOHperlitreofthesolution.

6.7gofCOcontains 1/46.02x1023 Oatoms.

7.Themassof1x1022formulaunitsofCuSO45H2Ois4.74gram .

C.MatchthefollowingColumnAColumnB1.CaC2 a.106g(4)2.Lawofmultipleproportions b.6.02x1023Neatoms(5)3.Hydrargyrum c.Molarityofsolution(6)4.2gm-equivalentsofNa2CO3 d.0.01molesofsoluteinoneLofsolution(8)5.22.4LatS.T.P e.Liquidelement(3)6.Numberofgmmolecules

perlitreofsolution f.Calcium carbide(1)7.1gm-atom ofrhombic

Sulphur g.(NH4)2SO4.FeSO4.6H2O(9)8.Centimolarsolution h.1/8gm-molecules(7)

9.Mohr’ssalt i.JohnDalton(2)

2.GENERALINTRODUCTION TO METALLURGY

1.Theearthyimpuritiesassociatedwithoresaregangueormatrix.2.FrothflotationprocessissuitableforconcentratingSulphideores.3.HighlypuremetalsareobtainedbyZonerefiningprocess.4.Gangue+fluxSlag5.Amineralfrom whichmetalcanbeprofitablyextractediscalledOre6.AmixturecontainingsulphidesofcopperandironiscalledMatte7.Pineoilisusedasafoamingagent.

3.ATOMICSTRUCTURE–I

1.Atomicmassofanelementisnotnecessarilyawholenumberbecause:(a)Itcontainselectrons,protonsandneutrons (b)Itcontainsallotropicforms(c)Atomsarenolongerconsideredindivisible (d)Itcontainsisotopes(e)Noneofthese.

2.Notwoelectronsinanatom willhaveallfourquantum numbersequal.Thestatementisknownas(a)Exclusionprinciple(b)Uncertainityprinciple (c)Hund’srule(d)Aufbauprinciple(e)Newlandslaw.



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3.Whenthe3dorbitaliscomplete,thenewelectronwillenterthe(a)4porbital(b)4forbital(c)4sorbital (d)4dorbital (e)5sorbital.

4.Thepreferenceofthreeunpairedelectronsinthenitrogenatom canbeexplainedby: (a)Pauling’sexclusionprinciple (b)Aufbau principle(c)Uncertaintyprinciple (d)Hund’srule (e)Noneofthese.

5.Thenumberoforbitalsinap-sub-shellis(a)1 (b)2 (c)3 (d)6 (e)5.

6.Thenucleusofanatom contains:(a)Electronsandprotons (b)Neutronsandprotons(c)Electrons,protonsandneutrons (d)Neutronsandelectrons(e)Noneofthese.

7.Whichisthelightestamongthefollowing? (a)Anatom ofhydrogen(b)Anelectron (c)Aneutron (d)Aproton (e)Analphaparticle.

8.Whichofthefollowinghasnoneutronsinthenucleus? (a)Deuterium(b)Helium (c)Hydrogen (d)Tritium (e)Analphaparticle.

9.Whenthevalueoftheazimuthalquantum numberis3,themagneticquantum numbercanhavevalues:

(a)+1,-1 (b)+1,0,1 (c)+2,+1,0,-1,-2 (d)+3,+2,+1,0,-1,-2,-3 (e)+3,-3.

10.2porbitalshave:(a)n=1,l=2(b)n=1,l=0(c)n=2,l=0 (d)n=2,l=1(e)n=1,l=1.

11.Theatomicnumberofanelementis17anditsmassnumberis37.Thenumberofprotons,electronsandneutronspresentintheneutralatom are:(a)17,37,20 (b)20,17,37 (c)17,17,20 (d)17,20,17 (e)37,20,17.

12.Themaximum numberofelectronsthatcanbeaccommodatedinthenthlevelis:(a)n2 (b)n+1 (c)n-1 (d)2n2 (e)2+n.

13.Themagneticquantum numberdecides: (a)Thedistanceoftheorbitalfrom thenucleus (b)Theshapeoftheorbital(c)Theorientationoftheorbitalinspace(d)Thespinoftheelectron

B.Filluptheblanks1.ThedecompositionofanelectrolytebypassageofelectricityisknownasElectrolysis.

2.NeutronsarediscoveredbyChadwick4.PERIODICCLASSIFICATION–I

1.Theelementswithatomicnumbers31belongsto:(a)d-block (b)f-block (c)p-block (d)s-block

2.Representativeelementsarethosewhichbelongto:(a)sandd-blocks (b)sandp-blocks (c)pandd-blocks (d)dandf-blocks



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3.Themostelectronegativeelementoftheperiodictableis:(a)Iodine (b)Flourine (c)Chlorine (d)Oxygen

4.Whichofthefollowingformsstablegaseousnegativeion.(a)F (b)Cl (c)Br (d)I

5.Theelementshavinghighestionizationenergieswithintheirperiodsarecalled:(a)Halogens (b)Noblegases (c)Alkalimetals (d)Transitionelements

6.Apropertywhichprogressivelyincreasesdownagroupintheperiodstableis: (a)Ionizationenthalpy (b)Electronegativity

(c)Electrongainenthalpy (d)Strengthasareducingagent.

7.Elementswhoseatomshavetheirsandp-sub-levelscompletearethe:(a)Normalelements (b)Transitionelements (c)Halogens (d)Inertgases.

8.Thelawoftriadisapplicableto:(a)Chlorine,bromineandiodine(b)Hydrogen,oxygenandnitrogen(c)Sodium,neonandcalcium (d)Alloftheabove

9.Thelawofoctaveswasstatedby:(a)Dobereiner(b)Mendeleev(c)Moseley(d)Newland

10.Whichofthefollowingpropertydecreasesdownagroup:(a)Ionizationenthalpy (b)Atomicradii(c)Valency (d)Alltheaboveproperties

11.Whichofthefollowinghasthelowestmeltingpoint?(a)CsCl(b)RbCl(c)KCl(d)NaCl(e)LiCl.

12.Whichofthefollowinghydroxideismostbasic?(a)Mg(OH)2 (b)Ba(OH)2 (c)Ca(OH)2 (d)Be(OH)2

13.Excludinghydrogenandhelium,thesmallestelementintheperiodictableis:(a)lithium (b)Oxygen (c)Fluorine (d)Chlorine

14.Whichoneamongthefollowingspecieshasthelargestatomicradius:(a)Na (b)Mg (c)Al(d)Si

15.Whichofthefollowingisthelightestmetal?(a)Calcium (b)Lithium (c)Magnesium (d)Sodium

16.Whichofthefollowinghashighestionizationpotential?(a)Sodium (b)Magnesium (c)Carbon (d)Fluorine

17.Withrespecttochlorine,hydrogenwillbe(a)Electropositive (b)Electronegative(c)Neutral(d)Noneofthese.

18.Whichelementhasthegreatesttendencytoloseelectrons?(a)Chlorine (b)Sulphur(c)Francium (d)Berylium.

19.Halogensbelongtothe:(a)s-block (b)p-block (c)d-block (d)f-block(e)Zerogroupoftheperiodictable.



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20.Comparedtofirstionizationenthalpyofanatom,thesecondis:(a)Greater(b)Less (c)Same (d)Negligible

21.Whicharrangementofthefollowingsetofatomsisinorderofincreasingatomicradius: Na,Rb,KandMg;

(a)Na,Mg,K,Rb (b)Na,K,Mg,Rb (c)Mg,Na,K,Rb (d)Na,Mg,Rb,K

22.Thefirstattempttoclassifytheelementswasmadeby:(a)Mendeleev (b)Newland (c)LotherMeyer (d)Dobereiner

23.Characteristicoftransitionelementsisincompletein(a)d-orbitals (b)f-orbitals (c)p-orbitals (d)s-orbitals

24.Whichofthefollowingwillhavelowestfirstionizationenthalpy?(a)Na (b)Al(c)Mg (d)Si

25.Whichofthefollowingatomsislikelytogiveoffmoreenergyongaininganelectron? (a)Na (b)Mg (c)Al(d)Cl

26.Transitionmetalshavetheelectronicconfiguration:(a)ns2nd1-10 (b)ns2np(n-1)d1-10 (c)ns2(n-1)d1-10 (d)ns2np6(n-1)d1-10

27.Inthefirsttransitionseriestheincomingelectronentersthe:(a)4d-orbital (b)3d-orbital (c)5d-orbital (d)6d-orbitalB.FillintheBlanks1.Mendeleev’speriodiclawstatesthatthepropertiesoftheelements

aretheperiodicfunctionsoftheatomicweights2.TheModernperiodiclawstatesthatthephysicalandchemical

propertiesoftheelementsareperiodicfunctionsoftheiratomicnumber.3.Thelongform oftheperiodictableisconstructedonthebasisof

repeatingelectronicconfigurationoftheatomswhentheyarearrangedintheorderofincreasingatomicnumbers.

4.Thefirstthreeperiodscontaining2,8and8elementsrespectivelyarecalledshortperiods

5.Thevalencyofrepresentativeelementsisgivenbythenumberofelectronsintheoutermostorbitaland/orequaltoeight(8)Minusthenumberofoutermostelectrons.

5.GROUP1SBLOCKELEMENTS1.Atomsofthesameelementhavingsameatomicnumberbutdifferent

massnumberarecalled (a)isotopes (b)isobars (c)isotones (d)isomerism

2.Deuterium nucleusconsistsof (a)2protonsonly(b)oneneutron (c)oneprotonandoneneutron(d)2protonsandoneneutron

3.Deuterium withoxygengives(a)oxydeuterium (b)water(c)heavywater(d)alltheabove

4.Tritium ispreparedbybombardinglithium with(a)deuterons (b)mesons (c)slowneutrons (d)allhelium nucleus

5.Atroom temperatureordinaryhydrogenconsistsofabout



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(a)25%paraand75%ortho (b)75%paraand25%ortho(c)99%paraand1%ortho (d)1%paraand99%ortho

6.D2OreactswithP2O5andgives(a)DPO4 (b)D2PO4 (c)D3PO3 (d)D3PO4

7.-----------------isusedforthepreparationofdeuterium(a)deuterium oxide (b)heavywater (c)bothaandb (d)deuterium peroxide

8.H2O2isapowerfulagent(a)dehydrating (b)oxidising (c)reducing (d)desulphurising9.H2O2 isusedasapropellantinnucleus(a)H2O2 (b)D2O (c)ND3 (d)CH2=CH2

10.Theoxidationstateofalkalimetalsis(a)+2 (b)0 (c)+1 (d)+3

11.Whenheatedinbunsenflame,lithium givescolour(a)yellow (b)blue (c)lilac (d)crimsonred

12.Onmovingdownthegroup,densityofthealkalimetals(a)increases (b)decreases (c)increasesandthendecreases(d)decreasesandthenincreases

13.Iftheelementcanloseanelectronreadily,theyaresaidtobe(a)electronegative (b)electropositive (c)electronative (d)electrovalentB.Fillintheblanks1.ThefirstelementintheperiodictableisHydragen.2.Protium isthecommonformedofhydrogen.3.Thehalf-lifeoftritium is12.3years.4.Deuterium reactswithammoniatoform Heavyammoniaordeuteroammonia.5.TherareisotopeofhydrogenisTritium .6.D2O isemployedinnuclearreactortoslowdownthespeedoffastmovingneutrons.7.ThemagneticmomentofparahydrogenisZero.8.Deuterium withsaltandothercompoundsformsDeuterates.9.HydrogenperoxidewasfirstpreparedbyL.J.Thenardin1813.10.PureH2O2isUnstable.11.TheArabicword̀ Alquili'meansPlantash.12.Theelectronicconfigurationofpotassium is1s22s22p63s23p64s1.13.Allalkalimetalshavelow meltingandboilingpoints.14.Onmovingdownthegroupofalkalimetals,ionizationenergydecreses.15.Liisthelightestofallsolidelements.

6.GROUP2s-BLOCKELEMENTS1.Amongthefollowing,whichisknownas̀alkalineearthmetal'.(a)Sodium (b)Calcium (c)Lithium (d)Potassium

2.Alkalineearthmetalsare(a)monovalent(b)trivalent(c)divalent(d)zerovalent

3.Amongalkalineearthmetals__________ishavingthehighestionizationenergy. (a)Beryllium (b)magnesium (c)Calcium (d)Barium



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4.Thecolourgivenbybarium inflameis(a)Brickred (b)AppleGreen (c)Red (d)Blue

5.Thethirdmostabundantdissolvedionintheoceanis(a)Beryllium (b)Barium (c)Calcium (d)Magnesium

6.Quicklimeis(a)Calcium oxide (b)Calcium hydroxide (c)Calcium nitrate(d)Calcium sulphate

7.Theformulaofbleachingpowderis(a)CaCl2.H2O (b)CaOCl2.H2O (c)CaSO4.2H2O (d)CaSO4.½H2O8.Plasterofparisis(a)CaSO4.½H2O(b)CaCl2 (c)CaSO4 (d)CaSO4.H2O

9.Thecompoundusedinmakingmouldsforstatuesis(a)Epsom salt(b)Calcium sulphide (c)Plasterofparis (d)Gypsum

10.Theelementusedinpyrotechnicsis(a)Magnesium (b)Barium (c)Calcium (d)BerylliumB.FillintheBlanks1.Thegeneralelectronicconfigurationofalkalineearthmetalsis___Ra_____.2.Theionicradiusincreasesonmovingdownthegroup.3.Inflame,calcium gives__brickred________colour.4.Beryllium resemblesmorewithanelementin13thgroup_Aluminium_______.5.Magnesium comesfrom thenameofthemineral_Magnetite_________.6.______Magnesium____ispresentchlorophyll.7.Magnesium ispreparedbytheelectrolysisoffused_carnalliteandNaCl_________.8.Withair,Magnesium formsMagnesium oxideandMagnesium nitride.9.Theformulaofepsom saltis_MgSO47H2O_________.10.Epsom saltisusedas_Purgative___.C.Matchthefollowing1.Magnetite CaSO4.2H2O (5)2.Dolamite MgCl2.KCl.6H2O (4)3.Epsom salt MgCO3 (1)

4.Carnallite MgCO3.CaCO3 (2)

5.Gypsum MgSO4.7H2O (3)

7.P-BLOCKELEMENTS1)Theelementsofgroup13to18oftheperiodictableareknownasa)s-blockelements b)p-blockelements c)d-blockelements d)f-blockelements

2)Thegeneralelectronicconfigurationofgroup18elementsisa)ns2 b)ns2np1 c)ns2np1-5 d)ns2np6

3)Thebasicoxideamongthefollowinga)Bi2O3 b)SnO2 c)HNO3 d)SO3

4)Themoststablehydrideofthefollowinga)NH3 b)PH3 c)ASH3 d)BiH3



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5)TheformulaofBoraxisa)NaBO2 b)Na2B4O7 c)H3BO3 d)Noneoftheabove

6)Thegeneralelectronicconfigurationofcarbongroupelementsisa)ns2np6 b)ns2 c)ns2np1 d)ns2np2

7)Theprocessusedforthemanufactureofammoniaisa)Contactprocessb)Ostwaldprocess c)Haber'sprocessd)Linde'sprocess

8.Theoxidesofnon-metalsareusuallya)ionicb)coordinatec)covalentd)noneoftheabove

9.Metallicoxidesaregenerallya)acidic b)basic c)amphoteric d)neutral

10.Fixationofnitrogenisasourcefora)Variousoxygencompounds b)Variousphosphoruscompoundsc)Variousnitrogencompounds d)Varioussulphurcompounds

11.Theoxyacidofnitrogenwhichisusedinthemanufactureofazodyes.a)Nitrousacid b)Nitricacid c)Hyponitrousacid d)Pernitricacid

12.ThehydrideofVgroupelementwhichisusedinthemanufactureofartificialsilka)ammonia b)stibine c)phosphine d)bismuthine

13.Anaestheticusedforminoroperationdentistrya)nitrousoxide b)nitricoxidec)nitrousoxide+oxygen d)nitrogendioxide

14.AnallotropeofcarbondiscoveredbyRichardSmalleyetal.a)graphite b)diamond c)fullerene d)carbonblackB.Fillintheblanks1.ThegeneralelectronicconfigurationofBorongroupelementsisns2np1.2.Boroncombineswithnitrogentoform BorannitrideBN.3.Boraxisusedtoidentifythemetallicradicalsinthequalitativeanalysis.4.Diboraneisknownas̀inorganicbenzene'.5.Indiamond,everycarbonatom isbondedwiththeotherbycovalentbond.6.C60BuckministerfullerenewasnicknamedasBuckyball.7.Carbontetrachlorideresistshydrolysis.8.NitrogenwasdiscoveredbyDanielRutherford.9.Nitricacidmeansstrongwater.10.Oxidisingpowerofnitricaciddecreaseswithdilution.11.DioxygenisalsocalledasMolecularoxygen.12.AtomicoxygencombineswithmolecularoxygentogiveOzone.13.TheozonisercommonlyusedinthepreparationofozoneisSiemen’sozoniser14.Ozonecanliberateaatom ofnascentoxygeneasily.15.Ozone isusedinthemanufactureofsyntheticcamphor.C.Matchthefollowing(a)1.Borax a.Allotropeofcarbon(2)2.Graphite b.Na2B4O7 (1)

3.ZnO c.Ozone(4)4.CFCs d.Amphotericoxide(3)5.NH3 e.Fertilizer



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f.Fixationofnitrogen(5)(b.)1.Inertpaireffect a.Nitricacid(2)2.Oxyacid b.Cellfuel(5)3.Liquidnitrogen c.Stabilisationofloweroxidationstate(1)4.Ostwaldprocess d.Ozone5.Molecularoxygen e.Platinum gauze(4)

f.Refrigerant(3)c.Boraxbeadtest(reducingflame)

1.Copper a.Blue(4)2.Iron b.Grey3.Manganese c.Red(1)4.Cobalt d.Bottlegreen(2)5.Chromium e.Colorless(3)

f.Green(5)

PHYSICALCHEMISTRY8.THESOLIDSTATE–I

1.Thestructureofsodium chloridecrystalis:(a)bodycentredcubiclattice (b)facecentredcubiclattice (c)octahedral(d)squareplanar

2.Thenumberofatomsinafacecentredcubicunitcellis:(a)4 (b)3 (c)2 (d)1

3.The8:8typeofpackingispresentin:(a)CsCl (b)KCl (c)NaCl (d)MgF2

4.Inasimplecubiccell,eachpointonacornerissharedby(a)2unitcells (b)1unitcells (c)8unitcells (d)4unitcells

5.Anamorphoussolidis:(a)NaCl(b)CaF2 (c)glass (d)CsCl

6.EachunitcellofNaClconsistsof4chlorineionsand:(a)13Naatoms (b)4Naatoms (c)6Naatoms (d)8Naatoms

7.Inabodycentredcubiccell,anatom atthebodyofcentreissharedby:(a)1unitcell(b)2unitcells (c)3unitcells (d)4unitcells

8.Inthesodium chloridestructure,formulaperunitcellisequalto(a)2 (b)8 (c)3 (d)4

9.Inafacecentredcubiccell,anatom atthefacecentreissharedby:(a)4unitcell(b)2unitcells (c)1unitcells(d)6unitcells

B.FillintheBlanks:1.InNaClioniccrystaleachNa+ionissurroundedbysixCl-ions

andeachCl-ionissurroundedbysixNa+ions.2.ThecoordinationnumberofCs+inCsClcrystaliseight3.Amorphoussolidsdonotpossesssharpmeltingpointsandcanbe



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consideredassupercooledliquids.4.Abodycentredunitcellhasanatom attheeachvertexandatcentre

oftheunitcell.5.ThethreetypesofcubicunitcellsareSimpleCubic,BCC andFCC6.Acrystalmayhaveanumberofplanesoraxesofsymmetrybutit

possessesonlyonecentreofsymmetry.7.Amorphoussolidsthatexhibitsamephysicalpropertiesinallthe

directionsarecalledisotropic.8.Crystallinesolidsthatexhibitdifferentphysicalpropertiesinall

directionsarecalledanisotropic.9.Thenumberofatomsinasingleunitcellofcubicclosepacked

sphereis410.Inabcc,anatom ofthebodycentreissharedbyone(1)unitcell.11.TheWeissindicesofaplaneare1/2,1/2,1/2.Itsmillerindiceswill

be2,2,2andtheplaneisdesignatedas(222)Plane.12.Aplaneisparalleltox&zaxesandmakesunitinterceptsalong

y-axis.ItsWeissindicesare,1,.ItsMillerindicesare010.Theplaneisdesignatedas(010)plane.

9.GASEOUSSTATE1.Acurvedrawnatconstanttemperatureiscalledanisotherm.Thisshowsrelationshipbetween

(a)Pand_1_ (b)PVandVV

(c)PandV (d)Vand_1__P

2.Agasdeviatesfrom idealbehaviourat(a)highT (b)LowT(c)highT andLowT(d)LowThighP

3.Thecriticaltemperatureofagasisthattemperature(a)Abovewhichitcannolongerremaininthegaseousstate(b)Abovewhichitcannotbeliquifiedbypressure(c)Atwhichitsolidifies(d)Atwhichvolumeofgasbecomeszero.

4.Ifagasexpandsatconstanttemperature.(a)Numberofmoleculesofthegasdecreases (b)Thekineticenergyofthemoleculesdecreases(c)Thekineticenergyofthemoleculesremainsthesame (d)Thekineticenergyofthemoleculesincreases5.ThemoleculesofagasAtravelfourtimesfasterthanthemoleculesofgasBatthesametemperature.Theratioofmolecularweight(MA/MB)willbe

1 1(a)___(b)4 (c)___(d)16

16 4B.Fillintheblanks6.Thecorrectionterm forpressuredeviationisP+n2a/v2intheVanderwaal

equationofstate.



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7.TherelationbetweeninversiontemperatureandVanderwaal’sconstants̀a’and̀ b’isTi=2a/Rb

8.ToliquefyHelium adiabaticdemagnetisationmethodisexclusivelyused.9.Theadiabaticexpansionofarealgasresultsincooling10.Therateofdiffusionofgasisinverselyproportionaltosquarerootoftheirmolecularmass.C.Matchthefollowing

A B11.Idealgasbehaviour (a)Criticaltemperature(13)12.Adiabaticdemagnetization (b)Liquidoxygen(14)13.CO2at31.1oC (c)Molefractionofthegas(15)14.JouleThomsonExperiment (d)Numberofmolesofthegas15.Ratioofthepartial (e)Lowpressureandhightemperature(11)

pressuretothetotalpressure (f)LiquidHelium (12)

10.CHEMICALBONDING1.Thecrystallatticeofelectrovalentcompoundsiscomposedof(a)Atoms (b)Molecules (c)Oppositelychargedions (d)Bothmoleculesandions

2.Thecompoundwhichcontainsbothionicandcovalentis(a)CH4 (b)H2 (c)KCN (d)KCl

B.Fillintheblanks3.InNaCl,Na+ionhas(Ne)2,8andCl-ionhas(Ar)2,8,8electronconfigurations.4.Linearoverlapoftwoatomicp-orbitalsleadsto bond.5.Born-HabercycleisrelatedwithLatticeenthalpy.6.Twoatomsofsimilarelectronegativityareexpectedtoform covalentcompounds.7.Repulsionbetweenbondpair-bondpairislesserthaninbetweenlonepair-lonepair.C.Matchthefollowing1.Electrovalentbonding a.Benzene(5)2.Covalentbonding b.HeitlerandLondon(3)3.ValenceBondtheory c.Electrontransfer(1)4.PolarisedBond d.Electronsharing(2)5.Resonance e.Fajan'stheory(4)

f.Aluminium chloride

11.COLLIGATIVEPROPERTIES1.Propertieswhichdependonlyonnumberofparticlespresentinsolutionarecalled(a)Additive (b)Constitutive (c)Colligative (d)None

2.Whichsolutionwouldpossessthelowestboilingpoint(a)1%NaClsolution (b)1%Ureasolution (c)1%glucosesolution (d)1%sucrosesolution

3.Incoldcountries,ethyleneglycolisaddedtowaterintheradiatorsofcarsduringwinters.Itresultsin:(a)Loweringboilingpoint (b)Reducingviscosity(c)Reducingspecificheat (d)Loweringfreezingpoint

4.Whichofthefollowing0.1M aqueoussolutionswillhavethelowestfreezingpoint?

(a)Potassium sulphate (b)Sodium chloride (c)Urea (d)Glucose



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5.TheVan'tHofffactorof0.005M aqueoussolutionofKClis1.95.ThedegreeofionisationofKClis(a)0.94 (b)0.95 (c)0.96 (d)0.59B.Fillintheblanks6.Relativeloweringofvapourpressureisequaltoinmolefractionofthesoluteinsolution.7.Aliquidhavinghighvapourpressurehaslow boilingpoint.8.TheleastcountofBeckmann'sthermometeris0.01K.9.Molalelevationconstantisacharacteristicconstantforagivensolvent.10.Semipermeablemembraneallowsthepassageofsolventthroughit.11.Foradeliquescencetooccur,thevapourpressureofwaterintheair

mustbelesserthanthatofthesaturatedsolution.12.Depressioninfreezingpointismorepronouncedifcamphorisused

asasolventinplaceofwaterforsameamountofsoluteandsolvent.13.Everysolutionbehavesasidealsolutionatinfinitedilutionstage.14.Theosmoticpressuresof0.1M glucoseand0.1M NaClsolutionsaredifferent.15.Solutionsthathavesameosmoticpressurearecalledisotonicsolutions.

12.THERMODYNAMICS–I1.Whichofthefollowingisnotastatefunctions?(a)q (b)q+w (c)∆H (d)V+PV

2.Whichofthefollowingisanextensiveproperty?(a)volume (b)density (c)refractiveindex (d)molarvolume

3.Whichofthefollowingisanexothermicreaction?(a)meltingofice (b)combustionreactions(c)hydrolysis(d)boilingofwater

4.Whichofthefollowingisreversibleprocess?(a)Diffusion (b)melting (c)neutralization (d)combustion

5.Inwhichprocess,workismaximum?(a)reversible (b)irreversible (c)exothermic (d)cyclicB.Fillintheblanks1.Translationalenergyofmoleculesisapartofinternalenergyofthesystem.2.Specificheatofaliquidsystem isintensiveproperty.3.Workdoneinthereversibleexpansionismaximum4.Combustionisanexothermicprocess.5.Heatofneutralisationofastrongacidisgreaterthanthatofaweakacid.

13.CHEMICALEQUILIBRIUM –I1.Inwhichequilibrium pressurehasnoeffect(a)PCl5(g) PCl3(g)+Cl2(g)

(b)H2(g)+I2(g) 2HI(g)(c)2SO2(g)+O2(g) 2SO3(g)

(d)NH4Cl(g) NH3(g)+HCl(g)

2.Fortheequilibrium N2O4(g) 2NO2(g),theKpandKcvaluesarerelatedas(a)Kp=Kc(RT)(b)Kp=Kc(RT)2 (c)Kp=Kc(RT)-1 (d)Kp=Kc(RT)-2

3.Forendothermicequilibrium,increaseintemperaturechangestheKeqvalueas(a)Nochange (b)Increases (c)Decreases d)None



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4.IntheheterogenousequilibriumCaCO3(s)CaO(s)+CO2(g)theKeqvalueisgivenby(a)partialpressureofCO2 (b)activityCaO(c)activitiesofCaCO3 (d)[CaO] / [CaCO3]

5.Fortheequilibrium reactionH2(g)+I2(g) 2HI(g)

(a)Kp=Kc (b)Kp>Kc (c)Kp<Kc (d)Kp=1/Kc

B.Fillintheblanks6.Inendothermicequilibrium reactiontheincreaseintemperatureincreasestheKeq

valuethe reaction.7.Whenthereactantisaliquidwhichdecomposestogaseousproducts.

Thentheequilibrium iscalledasliquid–vapourequilibrium8.Whenreactantsandproductsareingaseousstate,theequilibrium

constantcanbeexpressedintermsofpartialpreasure9.Valueoftheequilibrium constantisindependentoftheinitial

concentrationofreactants.10.Accordingtolawofmassaction,therateofachemicalreactionis

proportionaltoactivemassofreactants.C.Matchthefollowing11.Kp a.homogeneousequilibrium (14)12.CaCO3 CaO(s)+CO2(g) b.activemassofreactants(13)13.Rateofreaction c.irreversiblereaction(15)14.H2(g)+I2(g) 2HI(g) d.Degreeofdissociation15.C(s)+O2(g)CO2(g) e.KC(RT)n(g)(11)

f.Heterogeneousequilibrium (12)

14.CHEMICALKINETICS–I1.mol.dm-3sec-1istheunitof(a)rate (b)rateconstant (c)order (d)activemass

2.Theelementarystepwithslowraterepresents(a)ratedeterminingstep(b)maximum ratestep (c)thirdorderrate (d)overallorder

3.Molecularityisdeterminedfor (a)anelementaryreaction (b)anoverallreaction(c)anoverallstoichiometricreaction (d)afractionalorderreactionB.Filluptheblanks4.DecompositionofaqueousNH4NO2proceedsbyfirstorderreaction.5.Fractionalordersarefoundinpolymerisationreaction.6.InaZeroorderreactionratedoesnotdependonthereactant concentration.C.Matchthefollowing7.slowstep a.experimentallydetermined(8)8.order b.zeroorder(11)9.molecularity c.ratedeterminingstep(7)10.unitoffirstorder̀k' d.maximum rate11.rateisindependentofreactant e.theoreticalconceptconcentration(9)

f.sec-1(10)

15.BASICCONCEPTSOFORGANICCHEMISTRYWritetheIUPACnameofthefollowing

(a)CH3–CH–CH3 _2-propanol



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OHCH3

(b)CH3–C–CH3 2-methyl2-propanol

OH

(c)CH3–CH–CH–CH3

-methyl-2-butanolCH3 OH

CH3

(d)CH3–C–CH2–CH3 2-methyl2-butanol

OH

(e)CH2=CH–COCH2CH3 pent-1-ene-3-one(f)CH3CH2CHO - propanal(g)CH3–CH–CH2–COOH -3-methylbutanoicacid

CH3

(h)CH3CH2OCH2CH3 -Ethoxyethane

(i)CH3OCH2CH2CH3 -Methoxypropane

(j)CH3–O–CH–CH3 - 2-Methoxypropane

CH3

(k)CH3CH2CH2CH2NH2 -1-Aminobutane

16.PURIFICATIONOFORGANICCOMPOUNDS1.Organiccompoundsaresolubleina)Non-polarSolvents b)Polarsolvents c)Water d)HCl

2.Decolourisationofcolouredcompoundscanbeeffectedbyusinga)Animalcharcoal b)Carbon c)Coke d)Infra-redrays

3.Compoundshavingboilingpointswidelyapart40Kandabovecanbepurifiedbya)Crystallisation b)Simpledistillation c)Fractionaldistillation d)Sublimation

4.Nitrobenzeneandbenzenecanbeseparatedbythemethodofa)Steam distillation b)Crystallisation c)Fractionalcrystallisation d)Chromatography

5.Purificationoftwomiscibleliquidspossessingverycloseboilingpointscanbeseparatedusinga)Fractionaldistillation b)Sublimation c)Simpledistillation d)Steam distillation

6.Purificationofmixtureofcompoundscanbedonebysteam distillationonlyiftheimpuritiesare a)Non-volatile b)Volatile c)InsolubleinWater d)botha&c

7.Whenthestationaryphaseissolid,thenthecompoundscanbe separatedonthe



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basisofa)Adsorption b)Partition c)Bothpartitionandadsorption d)Either

8.ColumnChromatographyisbasedontheprincipleofa)Adsorption b)Partition c)Absorption d)Distribution

9.InAscendingpaperChromatography,thesolventmovesa)Upwards b)Downwards c)Horizontally d)None

10.Theexistenceofwiderangeoforganiccompoundsisduetotheir,propertyof a)Extensivecatenationb)Lowerboilingpoints c)Polymerisation d)Isomerism

B.Fillintheblanks1.TheCompoundsseparatedandpurifiedbycrystallisationcanbedried

Overinfraredlight2.Camphorcanbepurifiedbytheprocessofsublimation.3.InsimpledistillationthecompoundsshouldnotdecomposeatOrdinarypreasure4.Waterinsolublecompoundscanbepurifiedbysteam distillation.5.InT.L.Cthestationaryphaseisasolid.6.ChromatographictechniquewasfirstintroducedbyM.S.Tswett.7.Inpaperchromatography,themobilephasetravelsbyCapillary actionthroughthepaper.8.TheadsorbentusedincolumnChromatographymethodisAlumina.9.InChromatographictechnique,theseparationofcompoundsarebroughtaboutbydifferentmovementofthecompounds.10.PaperChromatographyispartitionChromatography.

18.HYDROCARBONS1)Alkanescanberepresentedbytheformulaa)CnH2n+2 b)CnH2n c)CnH2n-2 d)CnH2n-3

2)Alkenesarerepresentedbytheformulaa)CnH2n+2 b)CnH2n c)CnH2n-2 d)CnH2n-3

3)Alkynesarerepresentedbytheformulaa)CnH2n+2 b)CnH2n c)CnH2n-2 d)CnH2n-3

4)ThetypeofsubstitutionreactionthattakesplacewhenmethaneistreatedwithCl2inpresenceoflight a)ionic c)nucleophilic b)electrophilic d)radial

5)Whenn-hexaneispassedoverhotaluminasupportedchromium,vanadium ormolybdenum oxidethecompoundformedis

a)cyclopentaene b)cyclohexane c)toluene d)benzene

6)Whentheidenticalgroupsareonthesameoroppositesidesofthebondsinalkenestheisomerism iscalledasa)chainisomerism b)geometricalisomerism c)positionisomerism d)opticalisomerism

7)Diels-Alderreactionisthereactionbetweena)dieneanddienophile b)electrophileandnucleophile c)oxidantandreductant d)



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none.

8)Unsaturatedcompoundswithtwodoublebondsarecalledasa)diene b)alkadiene c)olefins d)paraffins.

9)Thehybridizationofcarbonsinethyleneisa)sp2 b)sp c)sp3 d)dsp2

10)Alcoholscanbedehydratedtoolefinsusinga)H2SO4 b)SOCl2 c)Pd d)Zn/Hg

11)WhenalkylhalidesaretreatedwithalcoholicKOH,theproductsarea)olefins b)alkanes c)alcohols d)aldehydes

12)Wittingreactionisusedtopreparea)analkene b)analkyne c)analkane d)noneoftheabove.

13)Electrolysisofpotassium succinategivesa)ethylene b)ethane c)acetylene d)noneoftheabove.

B.Filluptheblanks1)Inalkanes,thecarbonatomsareconnectedbysigma()bonds.2)Treatmentof1,2-dibromopropanewithzincandethanolgivespropene.3)CisBut-2-eneisangeometricalisomer.4)AdditionofHCltoanolefinfollowsMarkovnikov’srule.5)Analkenereactswithozonetoform ozonide6)CaC2onhydrolysisgivesacetylene7)EthylenedibromideontreatmentwithKOHgivesethylene8)Electrolysisofsodium maleategivesacetylene

19.AROMATICHYDROCARBONS1.Aromaticcompoundsarea)benzenoidcompounds b)non-benzenoidcompoundsc)aliphaticcompounds d)alicycliccompounds

2.Benzenewasfirstisolatedbya)Huckel b)Faraday c)Hofmann d)Barthelot

3.Benzeneundergoesa)additionreactions b)oxidationreactionsc)polymerisationreactions d)electrophilicsubstitutionreactions

4.Themoderntheoryofaromaticitywasintroducedbya)Faraday b)Huckel c)Hofmann d)Berthelot

5.Anycompoundcanbearomaticiftheyhave--------------delocalisedπelectrons.a)4n+2 b)4n+1 c)4n d)4n-2

6.ThefunctionofFeCl3inchlorinationofbenzeneistoproducea)Cl b)Cl+ c)Cl- d)C

7.Theorthoandparadirectinggroupsare



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a)activatinggroup b)deactivatinggroup c)both d)none

8.Thepurposeofaddingconc.H2SO4innitrationofbenzeneistoproducea)NO2 b)NO-

2 c)NO2+ d)NO3-

9.Anexampleofpolycyclicaromatichydrocarbona)pyridine b)pyrole c)naphthalene d)cyclohexane

10.Thecompoundwhichisusedasasolventfortheextractionoffatsandoilsa)naphthalene b)benzene c)cyclohexane d)butaneB.Fillintheblanks1.Manysyntheticdrugsusedarearomaticinpart.2.Thecoaltarformsthesourceofmanyorganiccompounds.3.ThemoderntheoryofaromaticitywasintroducedbyHuckel.4.OrthoandparadirectinggroupsarecalledasActivatinggroups.5.Metadirectinggroupsarecalledasdeactivatinggroups.6.AlkylsubstitutedbenzenesarepreparedbyFriedelcraftsreaction.7.Naphthaobtainedbyfractionaldistillationofpetroleum ispassedoverplatinum.8.Aromaticcompoundsreadilyundergoelectrophilicsubstitutionreactions.9.Fluorinereactsvigorouslywitharomatichydrocarbonsevenintheabsenceofcatalyst.10.Inthepresenceofplatinum benzenereactswithhydrogentogivecyclohexane.

20.ORGANICHALOGENCOMPOUNDS1.TheIUPACnameof

CH3

CH3-CH-CH-CH-CH3is

Br Cla.2-Bromo-3-chloro-4-methylpentaneb.2-Methyl-3-chloro-4-bromopentanec.2-Bromo-3-chloro-3-isopropylpropaned.2,4-Dimethyl-4-Bromo-3-chlorobutane.2.ForreactingwithHCl,thealcoholwhichdoesnotrequireZnCl2isa.CH3CH2OH b.CH3CH2CH2OHc.CH3CHOH

CH3 d.C(CH3)3C-OH.

3.Forconvertingalcoholsintoalkylhalides,thebestreagentisa.PCl3 b.PCl5 c.SOCl2 d.Alloftheabove

4.Theolefin,whichisnotimportantforMarkovniKoff'sadditionofHCl,isa.Propene b.But-1-ene c.2-Methyl-propene d.Ethylene

5.TheSN1reactionofalkylhalidesisnotaffectedbythenatureofthea.alkylgroup b.thehalogen c.medium d.nucleophileB.Fillintheblanks1.Markonikoff'sruleisfollowedfortheadditionofHCltoUnsymmetricalalkenes2.InSwartsreactionmetallicfluoridesareaddedtoAlkylchloride3.Hoffman'sruleisapplicabletoeliminationofcarbondioxide4.Chloropicrinispreparedbyaddingnitricacidtochloroform



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PREPAREDBYT.MUNIRAJ M.Sc;M.Phil;B.Ed;POSTGRADUATETEACHERINCHEMISTRYGOVTMODELHRSECSCHOOLPALACODE-636809 DHARMAPURIDT

CON :9942917317



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