IGCSE 化学2016预测试卷2

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1、CambridgeInternationalExaminationsCambridgeInternationalGeneralCertificateofSecondaryEducation*0123456789*CHEMISTRY0620/02Paper2MultipleChoice(Extended)ForExaminationfrom2016SPECIMENPAPER45minutesAdditionalMaterials:MultipleChoiceAnswerSheetSoftcleaneraserSoftpencil(ty

2、peBorHBisrecommended)READTHESEINSTRUCTIONSFIRSTWriteinsoftpencil.Donotusestaples,paperclips,glueorcorrectionfluid.Writeyourname,CentrenumberandcandidatenumberontheAnswerSheetinthespacesprovidedunlessthishasbeendoneforyou.DONOTWRITEINANYBARCODES.Therearefortyquestionson

3、thispaper.Answerallquestions.ForeachquestiontherearefourpossibleanswersA,B,CandD.ChoosetheoneyouconsidercorrectandrecordyourchoiceinsoftpencilontheseparateAnswerSheet.ReadtheinstructionsontheAnswerSheetverycarefully.Eachcorrectanswerwillscoreonemark.Amarkwillnotbededuc

4、tedforawronganswer.Anyroughworkingshouldbedoneinthisbooklet.AcopyofthePeriodicTableisprintedonpage18.Electroniccalculatorsmaybeused.ThesyllabusisaccreditedforuseinEngland,WalesandNorthernIrelandasaCambridgeInternationalLevel1/Level2Certificate.Thisdocumentconsistsof18p

5、rintedpages.©UCLES2014[Turnover21Aminoacidsarecolourlessandcanbeseparatedandidentifiedbychromatography.glasscoverbeakerchromatographypapersolventWhatadditionalapparatusisrequiredtoidentifytheaminoacidspresentinamixture?AalocatingagentBarulerCarulerandalocatingagentDnei

6、theraruleroralocatingagent2Thediagramshowsthediffusionofhydrogenchlorideandammoniainaglasstube.Thegasesaregivenoffbythesolutionsateachendofthetube.Whenhydrogenchlorideandammoniamixtheyproduceawhitesolid,ammoniumchloride.Whichlineshowswherethewhitesolidisformed?ABCDcott

7、onwoolsoakedincottonwoolsoakedinconcentratedammoniaconcentratedsolutionhydrochloricacid©UCLES20140620/02/SP/1633Thediagramshowsthestructureofanatom.key+=proton++––nnn=neutron–=electronWhichdiagramshowsthestructureofanisotopeofthisatom?ABCD+++++++++++––––––––nnnnnnnnn–4

8、Thetableshowsthestructureofdifferentatomsandions.protonnucleonnumberofnumberofnumberofparticlenumbernumberprotonsneut