MOOC 基礎(chǔ)化學(xué)General Chemistry-南京科技職業(yè)學(xué)院 中國大學(xué)慕課答案

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