第1題ThreesucrosesolutionswiththesamevolumearelabeledasA,BandC.TheconcentrationsofAandBare1mol﹡kg-1and1mol﹡

L-1,respectively.ThemassconcentrationofCis10%.Atthesametemperatureandpressure,whichoneiscorrect?()AAcontainsmoresucroseBBcontainsmoresucroseCCcontainsmoresucroseDAcontainsasmuchsucroseasB第2題Alltheconcentrationsoffollowingsolutionsare0.1mol·kg-1.Thecorrectorderoftheboilingpointsshouldbe()ANaCl>ZnCl2

>Al(NO3)3BAl(NO3)3

>NaCl>ZnCl2CAl(NO3)3

>NaCl>ZnCl2DAl(NO3)3

>ZnCl2

>NaCl第3題0.9%NaClsolutionandbodyfluidsareisotonic.()第4題Ionsonlyexistinsolutions.()第5題Amoleculemaycontaininfiniteatoms.()第6題Anatommustbesmallerthanamolecule.()第7題Thevolumeof1.0ggasis250cm3at100℃and172kPa.Thegas’molecularweightis()A72B62C52D42第8題Thefactorsofosmoticpressureare()AAsemipermeablemembraneBTheconcentrationsofsolutionsonbothsidesofthemembranearenotequalCThesolutionmustbeanelectrolyteDThesolutionmustbekeptatroomtemperature正確答案：AB第9題Underapressureof101.325kPa,0.1molNaCland0.1molglucosearedissolvedin1000gwater,respectively.Whichoneiscorrectabouttheboilingpointsofthesolutions?()ATheboilingpointsofbothsolutionsareabove100℃.ButtheboilingpointofNaClsolutionislowerthanthatofglucosesolutionBTheboilingpointsofbothsolutionsareabove100℃.ButtheboilingpointofglucosesolutionislowerthanthatofNaClsolution.CTheboilingpointofNaClsolutionisbelow100℃,whilethatofglucosesolutionisabove100℃.DTheboilingpointofglucosesolutionisbelow100℃,whilethatofNaClsolutionisabove100℃.第10題Whichmaterialhasthehighestvaporpressureat273K?()AgasolineBglycerinCiceDsalt第11題Thetransformationfromliquidtosolidiscalled()AevaporationBcondensationCsolidificationDmelting第12題Thematerialwithafixedboilingpointis()ASodaBHeavywaterCAquaregiaDChlorinewater第13題Whentemperaturerisingfrom100to200℃,thevolumeofcertainamountgasunderacertainpressurewill()ABereducedtoahalfBBereducedtomorethanahalfCBedoubledDBeincreasedbutnotdoubled第14題Whichconditioncanmaketherealgasclosetotheidealgas?()ALowtemperatureandhighpressureBLowtemperatureandlowpressureCHightemperatureandlowpressureDHightemperatureandhighpressure第1題Whichofthefollowingelectronconfigurationsareintheexcitedstates?()A1s22s12p1B1s22s2C1s22s22p63s14s1D1s22s22p63s23p64s1正確答案：AC第2題Thesmallestoneofthefollowingionsshouldbe(

)AAl3+BNa+CF?DO2?第3題Whenn=3,whichsetofquantumnumbersisavailable?(

)A3,2,1,0B3,

2,

-1,+12C3,3,1,+12D3,1,2,+12第4題Whichofthefollowingions'electronconfigurationcanberepresentedas?()AMn2+BFe3+CCo3+DNi2+第5題Theangulardistributionofsorbitalisasphere,whichindicatesthattheelectronsinsorbitalmoveonthesphere.()第6題Ifanatomcannotloseelectroneasily,itmustgainelectroneasily.()第7題Forthehydrogenatom,theorderfortheenergyof3s,3p,3d,4sshouldbe()A3s

<

3p

<

3d

<

4sB3s

<

3p

<

4s<

3dC3s

=

3p

=

3d

=

4sD3s

=

3

p

=

3d<

4s第8題Comparetheenergyof1selectroninsodiumandthatinhydrogen.()ATheformerishigherBequalCTheformerislowerDThevaluesareequalbutthemark

is

opposite第9題Penetrationwillmakeshieldingeffect()AstrongerBweakerCNoeffectDincreasetheshieldingofouterelectrons第10題Whichofthefollowingatomshasthegreatestfirstionizationenergy?()ABBCCNDO第11題Intheperiodictable,theelementsofIVB,VBandVIBgroupinthefifthperiodshowsimilarpropertiesascorrespondingelementsinthesixthperiod,because()ATheinfluenceofthes-blockelementsBTheinfluenceofthep-blockelementsCTheinfluenceofthed-blockelementsDTheinfluenceoflanthanideelements第12題Fortheorderofatomicradiusfromthelargesttothelowest,thecorrectoneis()AMg

>

C>SiBSi>Mg>CCMg>Si>CDC>Si>Mg第13題Inamulti-electronatom,whichelectronwiththefollowingquantumnumbershasthehighestenergy?()A3,2,+1,+1/2B2,1,+1,-1/2C3,1,0,-1/2D3,1,-1,+1/2ExercisesforChapterIII第1題Accordingtomolecularorbitaltheory,thecorrectstatementis()AE(π2p)<E(σ2p)inF2BThereisnodoublebondinO2+,andthebondlevelis2CO2+ismorestablethanN2DThereisasingle-electronbondinCO+第2題Forthefollowingmolecules,thecorrectorderofthebondanglesfromthelargesttothesmallestshouldbe()ANO2>N2O>O3BN2O>NO2>O3CN2O>O3>NO2DNO2>O3>N2O第3題WhichofthefollowingπorbitalsarepresentinN2O4()Aone

BTwoCone

DTwo第4題Whichofthefollowingmoleculeshasthesmallestbondangleoftwoadjacentcovalentbonds?(

)ABF3BCCl4CNH3DH2O第5題Whichofthefollowingmoleculeshasasingle-electronbond()ACOBB2CN2DNO+第6題Accordingtomolecularorbitaltheory,thecorrectstabilityorderfromthehighesttothelowestshouldbe(

)AO2>O2+>O22?BO2+>O2>O22?CO22?>O2>O2+DO2+>O22?>O2第7題Atomicorbitalsoverlapeachothershouldfollowtheprincipleofmaximumoverlapping.Thuscovalentbondscanonlybeformedby"head-to-head"alongthebondaxis.

第8題Bondenergyissameasdissociationenergy,whichhavethesamevalue.()第9題Moleculeswithlinealstructurearenonpolar.()第10題Whichofthefollowingmoleculesorionshasabondlevelofzero()ABe2BNe2CO2DO2+正確答案：AB第11題Ifthehybridorbitalofanatomissp3d2,itsconfigurationcouldbe()AOctahedralBFlatsquareCQuartetconeDTriangularbipyramid正確答案：ABC第12題Whichofthefollowingmoleculesorionsdoesnotcontainlonepair(s)?()AH2OBNH3CNH4+DH2S第13題Whichofthefollowingbondshasthelargestbondenergy()AO-HBF-HCF-FDN-H第14題Whichofthefollowingstatementsistrue()ABetweentheatomsofthesameelement,theenergyofthedoublebondistwiceasmuchasthatofthesinglebondBThenumberofcovalentbondsformedbyanatomisequaltothenumberofunpairedelectronsoftheatominthegroundstateCMolecularorbitalsarecomposedofatomicorbitalswithsimilarenergyandmatchedsymmetryonlybetweenthesameatomsDThelinearcombinationofpy

anddxyformsbondingπorbitalandantibondingπ*

orbital第15題ThehybridorbitalofoxygeninH2Ois()AspBsp2Csp3Ddsp2ExercisesforChapterIV第1題Amongthefollowinghydrogenbonds,thestrongestoneis(

)AS-H……OBN-H……NCF-H……FDC-H……N第2題Inwhichofthefollowingsystems,allthethreeintermolecularforcesandhydrogenbondsexistbetweensoluteandsolventmolecules?(

)AI2andCCl4solutionsBI2alcoholsolutionCCCl4AlcoholsolutionDCH3ClinCCl4solution第3題TheboilingpointsofHCl,HBrandHIincreasesequentially,because:()AVanderWaalsforcereductionBOrientationforceIncreasedCInductionIncreasedDDispersionIncreased第4題Comparethemeltingpointsofthefollowinggroupsofsubstances,thecorrectorderis()ANaCl

>

NaFBCCl4

>CBr4CH2S>

H2TeDFeCl3

<

FeCl2第5題Ingraphitecrystals,thechemicalforcebetweenlayersis()AMetalBondBCovalentbondCVanderWaalsforcesDLargeπbond第6題Whichofthefollowingcarbonateshasthelowestdecompositiontemperature?()ANa2CO3BCaCO3CZnCO3DMgCO3第7題Whichofthefollowingfluorideshasthelowestsolubilityinwateratroomtemperature?()ALiFBNaFCKFDCsF第8題Whichofthefollowingstatementisincorrect?()AEnergybandtheorybelievesthattheinsulatorhasfullandemptybands,andthewidthoftheforbiddenbandislargeBAccordingtothebandtheory,semiconductorshavefullandemptybands,butthebandgapisrelativelynarrow.CIntermolecularforcehasnosaturationanddirectionality,whilehydrogenbondinghassaturationanddirectionalityDPotassiummetalhasabody-centeredcubiclatticewithonlyonepotassiumatomineachunitcell第9題Themoleculesarrangedonthelatticepointsofthemolecularcrystalcanbepolarmoleculesornon-polarmolecules.()第10題Sb3+belongsto18+2electronconfiguration,Mn2+belongstothe9~17electronicconfiguration.()第11題Therearenoabsoluteionicbonds,butabsolutecovalentbondsdoexist.()ExercisesforChapterV第1題Whichofthefollowingstatementsaboutentropyiscorrect()ATheSm?valueofpuresubstanceat0Kis

0J·mol-1·K-1BInanisolatedsystem,thereactionwithrSm?>0

J·mol-1·K-1isalwaysspontaneousCInareaction,entropyincreaseswithincreasingofproductsDForcrystals,Sm?=0

J·mol-1·K-1第2題IfZn(s)+1/2O2(g)=ZnO(s),

?rHm?=

348.28kJ·mol-1

Hg(l)

+1/2O2(g)=HgO(s),

?rHm?=

90.83kJ·mol-1,

the?rHm?ofZn(s)+HgO(s)=ZnO(s)+

Hg(l)shouldbe

A-439.1

kJ·mol-1B515

kJ·mol-1C-257.45

kJ·mol-1DCan'tcalculate第3題Whenwaterboilsat100oCand101.325kPa,whichfunctionvaluewillchange()AEntropyBVaporpressureCHeatofvaporizationDGibbsfreeenergy第4題Atstandardstate,areactionisspontaneousatroomtemperature,whilethereversereactionisspontaneousathightemperature.Thefunctionofthereactionshouldbe()A?rHm?

<0,?rSm?

>0B?rHm?

>0,?rSm?

>0C?rHm?

<0,?rSm?

<0D?rHm?

>0,?rSm?

<0第5題The?fGm?

ofAg2O(s)atroomtemperature

is-10.82

kJ·mol-1.ThereactionAg2O(s)=Ag(s)+

O2(g)atstandardstateandroomtemperatureshouldbe

ASpontaneousBNon-spontaneousCReversibleDUnabletodetermine第6題Whichofthefollowingfunctionsareintensiveproperties()AInternalenergyBDensityCTemperatureDEntropy正確答案：BC第7題Fortheexpansionofanidealgasintovacuumunderadiabaticconditions,whichfunctionsarenotzero()AUBGCSDH正確答案：BC第8題Atthesametemperature,thecorrectentropyordersare()AO2(g,p?)<

O3(g,p?)BC2H5OH(g,p?)<CH3–O–CH3(g,p?)CCl2(l,p?)<I2(g,p?)DO2(g,100kPa)<O2(g,600kPa)正確答案：AC第9題Whichofthefollowingstatementsisincorrect()AAtroomtemperature,thestandardmolarentropiesofthesimplesubstancesare0J·mol-1·K-1BForallsimplesubstances,theirstandardenthalpiesofformationare0kJ·mol-1atroomtemperatureCIf?rSm?<0,thereactionisspontaneousDBecausethedecompositionofCaCO3(s)isendothermic,thestandardmolarenthalpyofCaCO3(s)formationisnegative正確答案：ABCDExercisesforChapterV第1題Whichofthefollowingstatementsaboutentropyiscorrect(

)ATheSm?valueofpuresubstanceat0Kis

0J

·mol?1·K?1BInanisolatedsystem,thereactionwith?rSm?>0

J

·mol?1·K?1isalwaysspontaneousCInareaction,entropyincreaseswithincreasingofproductsDForcrystals,Sm?=0

J

·mol?1·K?1第2題IfZn(s)+1/2O2(g)=ZnO(s),

?rHm?=

348.28kJ·mol-1

Hg(l)

+1/2O2(g)=HgO(s),

?rHm?=

90.83kJ·mol-1,

the?rHm?ofZn(s)+HgO(s)=ZnO(s)+

Hg(l)shouldbe

A-439.1

kJ·mol-1B515

kJ·mol-1C-257.45

kJ·mol-1DCan'tcalculate第3題Whenwaterboilsat100oCand101.325kPa,whichfunctionvaluewillchange()AEntropyBVaporpressureCHeatofvaporizationDGibbsfreeenergy第4題Atstandardstate,areactionisspontaneousatroomtemperature,whilethereversereactionisspontaneousathightemperature.Thefunctionofthereactionshouldbe()A?rHm?

<0,?rSm?

>0B?rHm?

>0,?rSm?

>0C?rHm?

<0,?rSm?

<0D?rHm?

>0,?rSm?

<0第5題The?fGm?

ofAg2O(s)atroomtemperature

is-10.82

kJ·mol-1.ThereactionAg2O(s)=Ag(s)+

O2(g)atstandardstateandroomtemperatureshouldbe

ASpontaneousBNon-spontaneousCReversibleDUnabletodetermine第6題Whichofthefollowingfunctionsareintensiveproperties()AInternalenergyBDensityCTemperatureDEntropy正確答案：BC第7題Fortheexpansionofanidealgasintovacuumunderadiabaticconditions,whichfunctionsarenotzero()AUBGCSDH正確答案：BC第8題Atthesametemperature,thecorrectentropyordersare()AO2(g,p?)<

O3(g,p?)BC2H5OH(g,p?)<CH3–O–CH3(g,p?)CCl2(l,p?)<I2(g,p?)DO2(g,100kPa)<O2(g,600kPa)正確答案：AC第9題Whichofthefollowingstatementsisincorrect()AAtroomtemperature,thestandardmolarentropiesofthesimplesubstancesare0J·mol-1·K-1BForallsimplesubstances,theirstandardenthalpiesofformationare0kJ·mol-1atroomtemperatureCIf?rSm?<0,thereactionisspontaneousDBecausethedecompositionofCaCO3(s)isendothermic,thestandardmolarenthalpyofCaCO3(s)formationisnegative正確答案：ABCD第10題Ifaclosedsystemgoesthroughaseriesofchangesandfinallyreturnstotheinitialstate,thecorrectoneisAQ

≠0,W=0,S

=0,H

=

QBQ

=-W,S

=0,G

=0,H

=0CQ

=0,W=0,U

=0,H

=0D

Q

=

W,U

=0,H

=0,S

=0第11題WhichofthefollowingstatementsarecorrectA

Foracertainamountofsubstance,theSm?ofgaseousislargerthanthatofliquidB

If2H2

(g)+O2

(g)→2H2O(l)，?rHm?=

572kJ·mol-1,

the?fHm?ofH2O(l)is572kJ·mol-1CForpuresubstance,theSm?valueislargerthan

0J·mol-1·K-1at273KDTheentropyvalueispositivelycorrelatedwithtemperature正確答案：ACD第12題Thenegative?rGm?indicatesthatthereactionisspontaneousunderstandard-stateconditions.第13題Themorenegativethe?Gofachemicalreactionis,thehigherthereactionrateis.第14題

Forachemicalreactionwithpositive?H?and?S?,?Gwilldecreasewhenthetemperatureincreases.第15題Heatisaformofenergytransferbetweenthesystemandthesurroundings.Itisneitherapropertyofthesystemnorastatefunction.ExercisesforChapterVI第1題Thecatalystincreasesthereactionratebychangingthereactionpathway.Inthecatalyticprocess()AThecollisionfrequencyincreasesBTheactivationenergydecreasesCRateconstantdecreasesDTheequilibriumconstantincreases第2題Foracatalyst,theincorrectdescriptionis()AThechemicalandphysicalpropertiesofthecatalystremainunchangedbeforeandafterthereactionBAcatalystincreasestherateatwhichchemicalequilibriumisreached,butitdoesnotaffecttheequilibriumconcentrations.CCatalystcannotchangetheequilibriumconstantDCatalystdoesnotenableareactionthatisthermodynamicallyimpossible第3題Theratesofchemicalreactionsincreasesignificantlywithincreasingtemperature.Themainreasonis()AMolecularcollisionsincreaseBThereactantpressureincreasesCTheactivationenergydecreasesDTheamountofactivatedmoleculesincreases第4題Iftheunitofrateconstantkismol?2·L?2·s?1,thereactionordershouldbe

(

)A1B2C3D4第5題Forreactionaandreactionb,?rGm(a)<

?rGm(b).Thentherelationshipbetweenυ(a)andυ(b)

is

()Aυ(a)>υ(b)Bυ(a)<υ(b)Cυ(a)=υ(b)DNotclear第6題InthereactionEa

>Ea(reverse),thecorrectoneis(

)A?rHm

<0B?rHm

>0C?rGm

<0D?rGm

>0第7題Aftercatalystwasaddedinareactionat800K,theactivationenergywaschangedfrom181.6

kJ·mol-1to151

KJ·mol-1.Howmanytimeswastheratechangedaftertheadditionofcatalyst?

(

)A200B99C50D49第8題Whichofthefollowingstatementsarecorrect

(

)AIfthemoleculenumberofthereactionproductincreases,theentropyofthesystemmaynotincreaseBIftherateofmA+nB=Cisk[A]m[B]n,m+nistheoverallreactionorder.CThereactionorderisdeterminedbythereactantmoleculenumber.DIfthemoleculenumberdoesnotchangebeforeandafterthereaction,thepressuredoesnotaffecttheequilibrium正確答案：AB第9題IftheactivationenergyofA+2B=Cis54.6

kJ·mol-1,?rHm?

=-27.7

kJ·mol-1,

theactivationenergyofC=A+2BisA26.9

kJ·mol-1B-26.9

kJ·mol-1C-54.6

kJ·mol-1D82.3kJ·mol-1第10題

Ifthetemperatureisincreasedbythesameamount,whichchemicalreactionexhibitslargerreactionrate

（）AEndothermicreactionBExothermicreactionCExothermicreactionDAreactionwithabiggerEa第11題Fortworeactionswithdifferentactivationenergies,thereactionwithgreateractivationenergywillbefasterifthetemperatureincreasedbythesameamount.第12題Whenthereactiontemperatureisincreased,thereactionrateoftheendothermicreactionwillincrease,butthereactionrateoftheexothermicreactionwilldecrease.第13題Iftherateofareactionincreaseswithincreasingreactantconcentrations,therateconstantalsoincreases.第14題Thecatalystcannotchange?Gofthereaction,butitcanchange?Hofthereaction.ExercisesforChapterVII第1題Whichoffollowingstatementsisincorrect?AOnlyareactionwithalargeequilibriumconstanthaspracticalsignificance.BTheequilibriumconstantissmallbecausethereactionproceedsveryslowly.CChangingthereactionconditionscanmakeacertainreactantconsumedmoreintheequilibriumreaction.DInreversiblereactions,theequilibriumconversionofthereactantsdoesnotchangewiththeinitialconcentration.正確答案：ABD第2題Whichofthefollowingmethodscanchangetheequilibriumconstant

K?

ofa

reversiblereaction?A

Changereactantconcentration.BChangetemperature.C

Usecatalyst.DChangetotalpressure.第3題At473K,thereaction

2NO(g)+O2(g)

?

2NO2(g)

reachesequilibriuminaclosedcontainer.AfteraddingHe

toincreasethetotalpressure,theequilibrium

willAShiftleftBShiftrightCNotmoveDBeuncertain.第4題Atacertaintemperature,

thestandardequilibriumconstantofthe

reaction

N2(g)+3H2(g)

?

2NH3(g)

is

K?,thenthestandardequilibriumconstantofreaction

NH3(g)

?

1/2N2(g)+3/2H2(g)isA(K?)-2B-1/2K?C1/K?D(K?)-1/2第5題TheK?forareactionat

973Kis2.92

×10-2,

whichis

1.04at1173K.Thenthereaction

shouldbeAExothermB

EndothermicC

NoheateffectDDifficulttojudge第6題Areversiblereaction’s

?rHm?

<

0,whenthetemperaturerises,whichofthefollowingdescriptioniscorrect?AThepositivereactionrateconstantincreases,thereversereactionrateconstantdecreases,and

K

?

increases.BThepositivereactionrateconstantincreases,thereversereactionrateconstantdecreases,and

K

?

decreases.CThepositivereactionrateconstantincreases,thereversereactionrateconstantincreases,and

K

?

decreases.DTherateofincreasingtherateconstantofthepositivereactionissmallerthantherateofincreasingtherateconstantofthereversereaction.正確答案：CD第7題Boththeequilibriumconstantandtheconversionratecanindicatethedegreeofprogressofthereaction,buttheequilibriumconstanthasnothingtodowiththeconcentration,whiletheconversionrateisrelatedtotheconcentration.第8題Underisothermalconditions,ifthereactionequilibriummovesandthereactionproceedsintheforwarddirection,theequilibriumconstantwillA

Increase.B

Decrease.CDonotchange.D

Bedifficulttojudge.第9題Understandardconditionsatroomtemperature,thereaction

NO(g)+CO(g)

?

1/2N2(g)+CO2(g)hasa?rHm?

=-373.2

kJ·mol-1.TheconditionthatareconducivetothemaximumconversionoftoxicgasesNOandCOisA

Lowtemperatureandlowpressure.B

Lowtemperatureandhighpressure.CHightemperatureandpressure.DHightemperatureandlowpressure.第10題Since

?rGm?

=-RTlnK?,thetemperatureincreasesthentheequilibriumconstantdecreases.

第11題Thereaction

3H2(g)+N2(g)

?

2NH3(g)

iscarriedoutunderconstantpressure.Ifargonisintroducedintothesystem,theammoniayieldwilldecrease.

第12題ThestandardGibbsfreeenergyandequilibriumconstantforthefollowingreactionsareknown:(1)C(s)+O2(g)?CO2(g)?rG1?，K1?(2)CO2(g)?CO(g)+1/2O2(g)?rG2?，K2?(3)C(s)+1/2O2(g)?CO(g)

?rG3?，K3?whichofthefollowingrelationshipiscorrect?A

?rG3?

=

?rG1?

+

?rG2?B

?rG3?

=

?rG1?

-

?rG2?CK3?

=

K1?

×

K2?DK3?

=

K1?

+

K2?正確答案：ACExercisesforChapterVIII第1題WhichofthefollowingpairsisNOTaconjugateacid-basepairANH3、NH2－BH3O＋、H2OCOH－、O2－

DNaOH、Na＋第2題AccordingtotheHard-and-softacidsandbases(HSAB)theory,whichofthefollowingspeciesisasoftacidAH＋BNH3CAg+

DAsH3第3題ThesolutionofpH＝2hasaconcentrationofH＋as()timesasthatinthesolutionwithpH＝6A4

B12

C4000D10000

第4題IfH2CO3hasaKa1＝4.2×10－7andaKa2=5.6×10－11，thenthepHofa0.10mol·L－1NaHCO3isA8.3B7.0C5.6D11.2第5題Ifthe0.10mol·L－1HAcsolutionweredilutedintoavolumeastwotimesastheoriginalbywater,the[H+]andpHshouldAdecreaseandincrease,respectivelyBkeepconstantanddecrease,respectivelyCincreaseanddecrease,respectivelyDreducetohalfoftheoriginalandincrease,respectively第6題WhenNH4Cl（s）isaddedintoaNH3·H2Osolution,

AKbincreasesBKbdecreasesCpHincreasesDpHdecreases第7題Kwareknownas0.64×10－14(18℃)and1.00×10－14(25℃),andwhichofthefollowingisrightATheionizationofwaterisanexothermicprocessBThepHofwaterisgreaterat25℃thanthatat18℃CTheconcentrationofhydroxylat18℃is0.8×10－7mol·L－1DWaterisneutralonlyat25℃第8題Thesuitableacid-basepairforabuffersolutionofpH＝9.2isAHAc－NaAc（Ka=1.8×10－5）BNaH2PO4－Na2HPO4（Ka2=6.3×10－8）CNH3－NH4Cl（Kb=1.8×10－5）DNaHCO3－Na2CO3（Ka2=

5.6×10－11）第9題WhichofthefollowingaqueoussolutionshasapH<7ANH4ClBNa2CO3

CNH4AcDNaHCO3第10題WhichofthefollowingspeciescanNOTbeconsideredasLewisacidABF3

BNH3CB(OH)3DFe3＋ExercisesforChapterIX第1題CaC2O4hasaKspof2.6×10－9，andaC2O42－solutionwiththeconcentrationofatlease()mol·L－1isrequiredtoobtainprecipitationfrom

0.020mol·L－1CaCl2solutionA1.3×10－7B1.0×10－9

C5.2×10－10D2.2×10－5

第2題InordertoincreasethesolubilityofPbSO4（s）,whichofthefollowingcompoundsshouldbeaddedAPb(NO3)2BNa2SO4CH2ODNH4Ac第3題CaF2hasaKsp＝3.9×10－11.Inasolutioncontaining

3.0mol·L－1F－ions，Ca2＋cationscouldhaveaconcentrationashighas

A1.3×10－11mol·L－1B4.3×10－12mol·L－1

C2.0×10－6mol·L－1D6.2×10－6mol·L－1第4題Ag3PO4hasaKsp＝1.4×10－16

，thenitssolubilityshouldbe()mol·L－1A9.6×10－6B1.2×10－8C4.8×10－5D1.4×10－4第5題A1.1×10－6mol·L－1saturatedsolutionofLa2(C2O4)3hasaKspofA1.2×10－12

B1.7×10－28C1.6×10－30D1.7×10－14第6題ToincreasethesolubilityofCaCO3inaqueoussolution,wemayAadd1.0mol·L－1Na2CO3solutionBadd2.0mol·L－1NaOHsolutionCaddthesamevolumeofwaterDreducethepHofthesolution第7題Onlywhen(),Ag2CO3(Ksp＝8.1×10－12)maybeconvertedintoAg2C2O4(Ksp＝3.4×10－11)

inthesolutionA[C2O42－]<4.2[CO32－]B[C2O42－]>0.24[CO32－]C[C2O42－]>4.2[CO32－]D[C2O42－]<0.24[CO32－]ExercisesforChapterX第1題ThestandardcellpotentialE°ofDaniellcellis1.11V.IfthecellpotentialofDaniellcellis1.17V,theconcentrationratio[Cu2+]/[Zn2+]shouldbe()A1:10B1:100C10:1D100:1第2題AmmoniaisaddedtoacellcomposedofAg+/AgandZn2+/Znuntilequilibriumwith[NH3·H2O]=1mol·L-1.K[Zn(NH3)4]2+=2.9×109,K[Ag(NH3)2]+=1.1×107.Comparedwiththeonewithoutammonia,theelectrodepotentialofthecellis(

)AgreaterBlessCthesameDunclear第3題ForametalM,E?(M2+/M)=-0.40V,E?(M3+/M)=-0.04V,thevalueofE?(M3+/M2+)shouldbe()A0.96VB第4題AccordingtoE?(I2/I-)=0.5355V,E?(H2O2/H2O)=1.776V,E?(Cl2/Cl-)=1.3585VandE?(Na+/Na)=-2.71V,themostreductivesubstanceis(

)ANa+BH2OCCl-DI-第5題Accordingto

,thevalueofE?(P4/PH3)shouldbe

(

)A-0.9VB-0.97VC1.07VD-0.89V第6題Whichofthefollowingsubstances’oxidicabilityincreaseswiththeincreasing[H+]

(

)AAg+BO2CCl2DCr2O72?正確答案：BD第7題ForacellreactionCu2+

+Zn=Zn2+

+Cu,thecellpotentialcanbeincreasedby()AreducingtheconcentrationofZn2+BincreasingtheconcentrationofZn2+CincreasingtheconcentrationofCu2+DreducingtheconcentrationofCu2+正確答案：AC第8題Whichofthefollowingpairs’electrodepotentialisrelatedtosolutionpH()AH2O2/H2OBO2/OH-CMnO2/Mn2+DMnO4–/MnO42–正確答案：ABCExercisesforChapterXI第1題Thecoordinationnumberofthecentralatomofthecomplexisequaltothenumberofligands第2題Thefartherthecoordinationatomsareseparatedfromeachotherinachelateligand,thelargertheringformed,themorestablethechelatecomplexis.第3題Theenergysplittingdependsonthespaceconfigurationofthecomplexandthechargeofthecentralion第4題Whichofthefollowingcomplexesshouldbeouter-obitalaccordingtothevalence-bondtheoryandcorrespondingmagneticmomentsA

[Fe(H2O)6]2+，5.3μB

B

[Co(NH3)6]3+，0

μB

C[Fe(CN)6]3-，1.7μBD

[Co(NH3)6]2+，3.9

μB

正確答案：AD第5題K3[FeF6]hasamagneticmomentof5.9B.M.，whilethemagneticmomentofK3[Fe(CN)6]is2.3B.M..ThedifferentmagneticmomentsofthesetwoFecomplexesshouldbeattributedtoAthedifferentoxidationstatesofFeBthegreaterenergysplittingofdorbitalsinducedbyCN－thanthatbyF－CthegreaterelectronegtivityofFincomparisonofCandNDthestrongπdonatingabilityofCN－第6題WhichcomplexioniscolorlessA[Ni(NH3)6]2＋B[Cu(NH3)4]2＋C[Cd(NH3)4]2＋D[CuCl4]2－

第7題