化学 水平测试附有答案

AP化学水平测试[复制]您的姓名：[填空题]*_________________________________基本信息：[矩阵文本题]*学校：________________________联系方式:________________________1.Themassspectrumofanaveragesampleofapureelementisshowninthefigureabove.Whichofthefollowingistheidentityoftheelement?[单选题]*(A)Y(B)Zr(正确答案)(C)Nb(D)Th2.Theidealgaslawbestdescribesthepropertiesofwhichofthefollowinggasesat0°Cand1atm?[单选题]*(A)PH3(B)HBr(C)SO2(D)N2(正确答案)3.Whichspeciesrepresentapairofisotopes?[单选题]*(A)LandM(B)LandP(C)PandQ(D)LandQ(正确答案)4.At298Kand1atm,Br2isaliquidwithahighvaporpressure,andCl2isagas.Those

observationsprovideevidencethatunderthegivenconditions,the[单选题]*(A)forcesamongBr2moleculesarestrongerthanthoseamongCl2molecules(正确答案)(B)forcesamongCl2,moleculesarestrongerthantheCl—Clbond(C)Br—BrbondisstrongerthantheCl—Clbond(D)Cl—ClbondisstrongerthantheBr—Brbond5.Whichofthefollowinghasthebondsarrangedinorderofdecreasingpolarity?[单选题]*(A)H-F>N-F>F-F(正确答案)(B)H-I>H-Br>H-F(C)O-N>O-S>O-Te(D)Sb-I>Sb-Te>Sb-Cl6.

Inthereactionrepresentedabove,whatisthehybridizationoftheCatomsbeforeandafterthereactionoccurs?[单选题]*(A)spsp2(B)spsp3(C)sp2sp(D)sp2sp3(正确答案)7.Ne,HF,C2H6,CH4

Whichofthesubstanceslistedabovehasthehighestboilingpoint,andwhy?[单选题]*(A)Ne,becauseitsatomshavethelargestradius(B)HF,becauseitsmoleculesformhydrogenbonds(正确答案)(C)C2H6,becauseeachmoleculecanformmultiplehydrogenbonds(D)CH4,becauseitsmoleculeshavethegreatestdispersionforces8.Ifapuresampleofanoxideofsulfurcontains48.percentsulfurand60.percentoxygenbymass,thentheempiricalformulaoftheoxideis[单选题]*A)SO3(正确答案)B)SO4C)S2O6D)S2O89.When4.0LofHe(g),6.0LofN2(g),and10.LofAr(g),allat0°Cand1.0atm,arepumpedintoanevacuated8.0Lrigidcontainer,thefinalpressureinthecontainerat0°Cis[单选题]*(A)0.5atm(B)1.0atm(C)2.5atm(正确答案)(D)4.0atm10.Theoverallreactioninthevoltaiccellbelowis:

Whichstatementiscorrectforthenickelhalf-cell?

[单选题]*(A)Nickelisthepositiveelectrode(cathode)andisreduced.(B)Nickelisthenegativeelctrode(anode)andisreduced.(C)Nickelisthepositiveelectrode(cathode)andisoxidized.(D)Nickelisthenegativeelctrode(anode)andisoxidized.(正确答案)11.

Threesaturatedsolutions(X,Y,andZ)arepreparedat25°C.Basedontheinformationin

thetableabove,whichofthefollowingliststhesolutionsinorderofincreasing[Ag+]?[单选题]*(A)X(B)Y(C)Z(D)Z(正确答案)12.Onthebasisofmolecularstructureandbondpolarity,whichofthefollowingcompoundsismostlikelytohavethegreatestsolubilityinwater?[单选题]*(A)CH4(B)CCl4(C)NH3(正确答案)(D)PH313.ThecompoundCCl4isnonflammableandwasoncecommonlyusedinfireextinguishers.Onthebasisoftheperiodicproperties,whichofthefollowingcompoundscanmostlikelybeusedasafire-resistantchemical?[单选题]*(A)BCI3(B)CH4(C)CBr4(正确答案)(D)PbCl214.2H2O2(l)→2H2O(l)+O2(g)

Theexothermicprocessrepresentedaboveisbestclassifiedasa[单选题]*(A)physicalchangebecauseanewphaseappearsintheproducts(B)physicalchangebecauseO2(g)thatwasdissolvedcomesoutofsolution(C)chemicalchangebecauseentropyincreasesastheprocessproceeds(D)chemicalchangebecausecovalentbondsarebrokenandnewcovalentbondsareformed(正确答案)15.NH3reactswithBF3toformasinglespecies.Whichofthefollowingstructuraldiagramsisthemostlikelyrepresentationoftheproductofthereaction?[单选题]*

A）

B）

C）

D）(正确答案)16.

Onthebasisoftheinformationabove,abufferwithapH=9canbestbemadebyusing[单选题]*(A)pureNaH2PO4(B)H3PO4+H2PO4-(C)H2PO4-+PO43-(D)H2PO4-+HPO42-(E)HPO42-+PO43-(正确答案)17.WhichofthefollowingrepresentsthegroundstateelectronconfigurationfortheMn+3ion?(AtomicnumberMn=25)[单选题]*(A)1s22s22p63s23p63d4(正确答案)(B)1s22s22p63s23p63d54s2(C)1s22s22p63s23p63d24s2(D)1s22s22p63s23p63d84s2(E)1s22s22p63s23p63d34s118.Theformulaforpotassiumhexacyanoferrate(II)is[单选题]*(A)K4[Fe(CN)6](正确答案)(B)K3[Fe(CN)6](C)K2[Pt(CN)4](D)K2[Pt(CN)6](E)KCN19.Whichofthefollowingsetsofquantumnumbers(n,I,ml,ms)bestdescribesthevalenceelectronofhighestenergyinaground-stategalliumatom(atomicnumber31)?[单选题]