《 电化学基础》测试卷（electrochemical basics test volume）

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1、《电化学基础》测试卷（ElectrochemicalBasicstestvolume）"ElectrochemicalBasics"testvolume(1)basicexercisesFirst,themultiple-choicequestion1,thefollowingprocessesneedtobeenergized,namely:ionization;electrolysis;electroplating;electrophoresis;electrochemicalcorrosion;A,II.B,II.C,II;D;all;2,atroomtemperature,0.

2、1mol/LacidsolutionpHvaluefor:A,1;B;>1;C;<1;D;cannotbedetermined;3,roomtemperatureof1litersNaOHcontainingsaturatedsaltwater,thepHof=10,electrolysiswithplatinumelectrodeascathode,11.2litersofgasproduction(standardcondition),pHvalue(closetothesetafterelectrolysissolutionvolumeis1liters):A.,0;B;12;C

3、,13;D,14;Thebasicstructureof4,newlydevelopedabroadbromine-zincbatteriesareusedascarbonpoles,electrolyteiszincbromidesolution.Fourelectrodereactionsareavailable:(Zn-2e,=Zn2+,II,Zn2++2e,=Zn,Br2+2e=2Br-,2Br--2e=Br2Thentheanodereactionatchargeandthenegativereactionduringdischargearerespectively:A,IV

4、,B,II,C,andD;5,KarlBeireactionis2RCOOK+2H2OR-R+H2+2CO2+2KOH,thefollowingstatementiscorrect(C)A.productscontaininghydrogenareproducedintheanoderegion;B.productscontaininghydrogenareproducedinthecathoderegion;C.productscontainingcarbonareproducedintheanoderegion;D.productscontainingcarbonareproduc

5、edinthecathoderegion;6,with0.01rub/literH2SO4titration0.01rub/literNaOHsolution,andafterneutralization,addwaterto100ml..Iftheendofthejudgmentthereiserror:morethan1dropsofH2SO4II,with1dropsofH2SO4(Set1dropsfor0.05ml),thenoneandC(H+)ratioisthevalueof:A.10,B.50,C.5*103,D.1*1047.Inthebeakerofsaturat

6、edsodiumcarbonatesolution,insertinertelectrodetokeepthetemperatureconstant,afteracertainperiodoftime:ThepHoftheA.solutionwillincreaseTheratioofB.andthenumberofsodiumcarbonateionnumberbecomessmallerTheconcentrationofC.solutionincreasesgradually,andacertainamountofcrystalprecipitatesWhentheconcent

7、rationofD.solutionisconstant,thereiscrystalprecipitation8,roomtemperature,pH=lhydrochloricacidweredividedinto2parts,lpartsofaddingwater,theother1accessionswiththeconcentrationofsubstancesinthesameamountofhydrochloricacidsolu