MOOC 基础化学General Chemistry-南京科技职业学院 中国大学慕课答案

MOOC基础化学GeneralChemistry-南京科技职业学院中国大学慕课答案Module1ChemicalBasicKnowledgeTest1、问题：Sodiumisametal.Fromthisinformationalone,itmaybededucedthatsodium选项：A、ishard.B、islessdensethanwater.C、isaconductorofelectricity.D、isveryreactive.正确答案:【isaconductorofelectricity.】2、问题：AmetalYreactsveryslowlywithwaterbutdecomposessteamatredheat.WhichoneofthefollowingcouldbeY?选项：A、magnesiumB、copperC、leadD、sodium正确答案:【magnesium】3、问题：Whichoneofthefollowingmetalsdoesnotreactwithdilutehydrochloricacidtogivehydrogen?选项：A、magnesiumB、copperC、calciumD、iron正确答案:【copper】4、问题：Whenzincisaddedtoasolutionofametalsulphate,themetalisdepositedandzincionsareproducedinsolution.Themetaldepositedcouldbe选项：A、magnesiumB、calciumC、potassiumD、copper正确答案:【copper】5、问题：Whichoneofthefollowingoxidesismostreadilyreducedtothemetalbyheatinginastreamofhydrogen?选项：A、copper(Ⅱ)oxideB、sodiumoxideC、zincoxideD、calciumoxide正确答案:【copper(Ⅱ)oxide】6、问题：Whichoneofthefollowinggasesisleastcommoninair?选项：A、carbondioxideB、nitrogenC、hydrogenD、oxygen正确答案:【hydrogen】7、问题：Whichoneofthefollowingsetscontainsthreepollutantsfoundinair?选项：A、argon,carbonmonoxide,nitrogenB、carbondioxide,carbonmonoxide,heliumC、carbondioxide,nitrogendioxide,oxygenD、carbonmonoxide,nitrogendioxide,sulphurdioxide正确答案:【carbonmonoxide,nitrogendioxide,sulphurdioxide】8、问题：Whichgasisthemaincauseofdamagetostoneworkonbuildings?选项：A、nitrogenB、sulphurdioxideC、carbonmonoxideD、carbondioxide正确答案:【sulphurdioxide】9、问题：Whichofthefollowingisanexampleofdiffusion?选项：A、thespreadingofthesmellofflowersinagardenB、hotairrisingaboveaburningcandleC、bubblesrisinginabeakerofboilingwaterD、waterspreadingoutonthesurfaceofatable正确答案:【thespreadingofthesmellofflowersinagarden】10、问题：Whichpropertyofagasaffectstherateatwhichitspreadsthroughoutalaboratory?选项：A、boilingpointB、molecularmassC、solubilityinwaterD、reactivity正确答案:【molecularmass】11、问题：Whichofthefollowingisthebestmethodofobtainingpurewaterfromink?选项：A、freezingB、chromatographyC、distillationD、filtration正确答案:【distillation】12、问题：Whichoneofthefollowingpairsconsistsofsubstancesthatproduceaprecipitatewhentheiraqueoussolutionsaremixed?选项：A、sodiumnitrate,bariumchlorideB、sodiumnitrate,silversulphateC、sodiumsulphate,bariumchloride.D、sodiumchloride,bariumnitrate正确答案:【sodiumsulphate,bariumchloride.】13、问题：WhichoneofthefollowingreactionscouldberepresentedbytheionicequationbelowinwhichMisthesymbolforametallicelement?M(s)+2H+(aq)M2+(aq)+H2(g)选项：A、iron+dilutehydrochloricacidB、lead+dilutesulphuricacidC、copper+dilutenitricacidD、sodium+water正确答案:【iron+dilutehydrochloricacid】14、问题：Whichoneofthefollowingcompoundsina1mol/dm3solutionhasthelowestpHvalue?选项：A、ammoniaB、ethanoicacidC、hydrogenchlorideD、sodiumchloride正确答案:【hydrogenchloride】15、问题：AnaqueoussolutionofacompoundXwasfoundtoreactwithzincandtoevolvecarbondioxideoncontactwithmarblechips.Xcouldbe选项：A、ammonia.B、hydrogenchlorideC、sodiumchlorideD、bariumnitrate正确答案:【hydrogenchloride】16、问题：Whichoneofthefollowingformsacolourlesssolutionwhichreactswithaqueoussilvernitrateinthepresenceofdilutenitricacidtogiveayellowprecipitateinsolubleinaqueousammonia?选项：A、calciumiodideB、bariumnitrateC、iron(Ⅱ)iodideD、copper(Ⅱ)chloride正确答案:【calciumiodide】17、问题：Aqueousammoniaisaddedtoasolutionofasalt.Awhiteprecipitateisformedwhichdissolvesinanexcessofaqueousammonia.Whichmetalisinthesalt?选项：A、calciumB、copperC、leadD、zinc正确答案:【zinc】18、问题：Whensulphurdioxideisbubbledintoaqueousbrominetheredcolourfades.Sulphurdioxideisactingas选项：A、anacid.B、areducingagent.C、adehydratingagent.D、acatalyst.正确答案:【areducingagent.】19、问题：Whichoneofthefollowingbestdescribeswhathappensduringtheelectrolyticrefiningofcopper?选项：A、Copperisdepositedonthecathode(-)andthesolutionbecomescolourless.B、Copperisremovedfromtheanode(+)anddepositedatthecathode(-).Thesolutionremainsblue.C、Thesolutionbecomesincreasinglyblueasmorecopperionsareformedattheanode.D、Copperistransferredfromthesolutiontotheanode(+)andthesolutionbecomescolourless.正确答案:【Copperisremovedfromtheanode(+)anddepositedatthecathode(-).Thesolutionremainsblue.】20、问题：Lead(Ⅱ)sulphateisbestpreparedbyaddingdilutesulphuricacidto选项：A、leadfoilB、powderedlead(Ⅱ)carbonate.C、powderedlead(Ⅱ)oxide.D、aqueouslead(Ⅱ)nitrate.正确答案:【aqueouslead(Ⅱ)nitrate.】Module2ChemicalReactionRateandChemicalEquilibriumTest1、问题：选项：A、B、C、D、正确答案:【2、问题：】选项：A、B、C、D、正确答案:【3、问题：】选项：A、B、C、D、正确答案:【4、问题：】选项：A、B、C、D、正确答案:【5、问题：】选项：A、B、C、D、正确答案:【6、问题：】选项：A、B、C、D、正确答案:【#】7、问题：选项：A、B、C、D、正确答案:【8、问题：#】选项：A、正确B、错误正确答案:【错误】9、问题：选项：A、正确B、错误正确答案:【正确】10、问题：选项：A、正确B、错误正确答案:【正确】11、问题：选项：A、正确B、错误正确答案:【错误】12、问题：选项：A、正确B、错误正确答案:【正确】13、问题：选项：A、正确B、错误正确答案:【正确】14、问题：选项：A、正确B、错误正确答案:【正确】15、问题：选项：A、正确B、错误正确答案:【正确】16、问题：选项：A、正确B、错误正确答案:【正确】17、问题：选项：A、正确B、错误正确答案:【正确】18、填空题：正确答案:【2645】19、填空题：正确答案:【211】20、填空题：正确答案:【412122】ChemicalAnalysisTechniqueTest1、问题：Thereis1L0.4mol·L－1Na2CO3solutionwiththeadditionof1.0ml0.1mol·L－1HClsolution.Whichchoicelistedbelowistrue?选项：A、pHdecrease,dissociationdegreeofCO32-decrease.B、pHdecrease,dissociationdegreeofCO32-increase.C、pHincrease,dissociationdegreeofCO32-increase.D、pHincrease,dissociationdegreeofCO32-decrease.正确答案:【pHdecrease,dissociationdegreeofCO32-increase.】2、问题：TodeterminethecontentofMg2+andCa2+ionsintapwater,inordertokeepthepH=10,whichbuffersystemlistedbelowisthebest?选项：A、0.1mol·L-1HAc—0.1mol·L-1NaAc(Ka=1.8×10-5)B、0.1mol·L-1NH3·H2O—0.1mol·L-1NH4Cl(Kb=1.8×10-5)C、0.1mol·L-1NaH2PO4—0.02mol·L-1Na2HPO4(Ka=6.23×10-8)D、0.1mol·L-1H2CO3—0.02mol·L-1NaHCO3(Ka=4.3×10-7)正确答案:【0.1mol·L-1NH3·H2O—0.1mol·L-1NH4Cl(Kb=1.8×10-5)】3、问题：Ifyoumixtwosolutionsofequalvolumeineachoptionlistedbelow,whichoptionhasnobufferaction.选项：A、0.2mol·L-1HCland0.2mol·L-1KClB、0.02mol·L-1HCland0.04mol·L-1NH3·H2OC、0.01mol·L-1KH2PO4and0.2mol·L-1Na2HPO4D、0.01mol·L-1NaOHand0.02mol·L-1HAc正确答案:【0.2mol·L-1HCland0.2mol·L-1KCl】4、问题：Thereis1L0.1mol·L－1HAcsolutionwiththeadditionof0.5mL0.1mol·L－1NaClsolution.Whichchoicelistedbelowistrue?选项：A、pHdecrease,dissociationdegreeofHAcdecrease.B、pHdecrease,dissociationdegreeofHAcincrease.C、pHincrease,dissociationdegreeofHAcincrease.D、pHincrease,dissociationdegreeofHAcdecrease.正确答案:【pHincrease,dissociationdegreeofHAcincrease.】5、问题：Whichoptionofthefollowingdeterminesthecapacityofabuffer选项：A、Conjugateacid-basepairB、Buffer-componentratioC、BufferrangerD、pKaoftheacidcomponent正确答案:【Buffer-componentratio】6、问题：Thebufferrangeofabuffersolutionpreparedbymixing100mL0.2mol·L-1H2Asolutionand100mL0.3mol·L-1NaOHisabout().(pKa1=4.00;pKa2=9.00)选项：A、3.00～5.00B、5.00～7.00C、8.00～10.00D、9.00～11.00正确答案:【3.00～5.00】7、问题：Iftwosolutionsaremixedinequalvolumeineachoptionlistedbelow,whichoptionhasnobufferaction?选项：A、0.2mol·L-1NaOHand0.2mol·L-1KClB、0.2mol·L-1HCland0.4mol·L-1NH3·H2OC、0.1mol·L-1H3PO4and0.1mol·L-1Na2HPO4D、0.1mol·L-1NaOHand0.2mol·L-1HAc正确答案:【0.2mol·L-1NaOHand0.2mol·L-1KCl】8、问题：ToprepareabufferofpH9,whichbuffersystemlistedbelowisthebest?选项：A、0.1mol·L-1HAc—0.1mol·L-1NaAc(pKa=4.75)B、0.1mol·L-1NH3·H2O—0.1mol·L-1NH4Cl(pKb=4.75)C、0.1mol·L-1H2CO3—0.15mol·L-1NaOH(pKa1=6.37;pKa2=10.25)D、0.1mol·L-1HCN—0.02mol·L-1NaCN(pKa=9.5)正确答案:【0.1mol·L-1NH3·H2O—0.1mol·L-1NH4Cl(pKb=4.75)】9、问题：Howmanygramsofpotassiumhydrogenphthalate(KHC8H4O4)primarystandardsubstancearerequiredtostandardizeabout25mLof0.1mol·L-1NaOHsolution?()[Mr(KHC8H4O4)＝204g·mol-1]选项：A、0.2550gB、0.5100gC、0.05100gD、1.0200g正确答案:【0.5100g】10、问题：Whichsubstancecanuseasstrongbaseinglacialaceticacid选项：A、HAcB、H2OC、H3PO4D、NH3正确答案:【NH3】11、问题：pHofsolutioninwhich0.2mol·L－1H3PO4solutionand0.2mol·L－1Na3PO4solutionaremixedinthesamevolumeis?(Ka1=7.5×10-3,Ka2=6.3×10-8,Ka3=2.2×10-13)选项：A、12.8B、1.32C、2.12D、7.21正确答案:【7.21】12、问题：Thecolorofthesolutionisyellowwiththeadditionofmethylorangeindicatorandredwiththeadditionofmethylred.InordertokeepthepHofthesolutionstable,whichbuffersystemlistedbelowisthebest?选项：A、0.1mol·L-1HAc—0.1mol·L-1NaAc(pKa=4.75)B、0.1mol·L-1NH3·H2O—0.1mol·L-1NH4Cl(pKb=4.75)C、0.1mol·L-1NaH2PO4—0.1mol·L-1Na2HPO4(pKa2=7.21)D、0.1mol·L-1HCN—0.1mol·L-1NaCN(pKa=9.5)正确答案:【0.1mol·L-1HAc—0.1mol·L-1NaAc(pKa=4.75)】13、问题：ToprepareabufferofpH10.5,whichbuffersystemlistedbelowisthebest?选项：A、CH3NH2·HCl—CH3NH2(pKa=10.65)B、NH3·H2O—NH4Cl(pKa=9.25)C、Na3PO4—Na2HPO4(pKa3=12.32)D、H2CO3—NaHCO3(pKa1=6.37)正确答案:【CH3NH2·HCl—CH3NH2(pKa=10.65)】14、问题：Whichisnotconjugateacid-basepairinthefollowingacid-basepair?选项：A、HAc-Ac-B、NH3-NH2-C、HNO3-NO3-D、H2SO4-SO42-正确答案:【H2SO4-SO42-】15、问题：whichchangeisanexampleofoxidation?选项：A、chlorideiconstochlorineatomsB、copper(Ⅱ)tocopperatomsC、iron(Ⅲ)ionstoiron(Ⅱ)iconsD、oxygenatomstooxideicons正确答案:【chlorideiconstochlorineatoms】16、问题：Whichofthefollowingisthebestmethodofobtainingpurewaterfromink?选项：A、chromatographyB、distillationC、filtrationD、freezing正确答案:【distillation】17、问题：Achlorideion,Cl-hasthesametotalnumberofelectronsas选项：A、anargonatom,ArB、abromineatom,BrC、afluorideion,F-D、asodiumion,Na+正确答案:【anargonatom,Ar】18、问题：Whichoneofthefollowingfactsbestsuggestthatcopperisatransitionmetal?选项：A、CopperdoesnotreactwithhydrochloricacidB、Copper(II)oxideundergoesneutralizationwithnitricacidC、Copper(II)carbonatedecomposesonheatingD、CopperformsoxidesofformulaCuOandCu2O正确答案:【Copperdoesnotreactwithhydrochloricacid】19、问题：12gofmagnesiumareaddedto200gofhydrochloricacidwhichisinexcess.Thetotalmassofthemixtureleftwhenthereactioniscompleteis选项：A、188gB、187gC、211gD、213g正确答案:【211g】20、问题：Whichofthefollowingchangesisanexampleofreduction?选项：A、chlorideionstochlorinemoleculesB、hydrogenmoleculestohydrogenionsC、iron(II)ionstoiron(III)ionsD、nitrogenmoleculestoammoniamolecules正确答案:【nitrogenmoleculestoammoniamolecules】Module4OrganicCompoundsTest1、问题：Theproductofthefollowingreactionis----------()选项：A、B、C、D、正确答案:【】2、问题：2.WhichcanmakeBr2/CCl4solutioncolorless,whilecan’tmakeKMnO4solutioncolorlessinthefollowingcompouds?--------（）选项：A、B、C、D、正确答案:【】3、问题：选项：A、B、C、D、正确答案:【】4、问题：选项：A、B、C、D、正确答案:【】5、问题：选项：A、B、C、D、正确答案:【】6、问题：Whichreagentcanoxideethylbenzenetobebenzoicacid----（）选项：A、K2Cr2O7/酸B、MnO2/水C、①O3/②Zn，NaOH，水D、H2O2正确答案:【K2Cr2O7/酸】7、问题：Whichcompoundhasthebiggestsolubilityinwater-----()选项：A、B、C、D、正确答案:【】8、问题：Whichhascis-andtrans-structureinthefollowingcompound？--------（）选项：A、FCH=CH2B、CH3（Br）C=C（CH3）2C、CH3CH=C（CH3）2D、CH3CH2CH=CHCH3正确答案:【CH3CH2CH=C