选择题.docx

选择题.docx

《选择题.docx》由会员分享，可在线阅读，更多相关《选择题.docx（16页珍藏版）》请在冰豆网上搜索。

选择题

试卷A

1.WhenelectronsoccupythelowestenergylevelsavailabletothemtheelectronsaresaidtobeinA.

A.thegroundstateB.aradiationstate

C.anexcitedstate.D.adeficientstate

2.Whichofthefollowingsubstanceisapuresubstance?

B.

A.sodawaterB.copperpipeC.softdrinkD.whitewine

3.TheisotopesofanelementhavethesameA.

①electronicstructure②chemicalproperties③massnumber④physicalproperties

A.①and②B.②and④C.③and④D.①and③

4.Whatisthesymboloftheelementpotassium?

D.

A.CB.PC.NaD.K

5.PickanexampleofachemicalchangebelowC.

A.sandmixedwithwaterB.ironthatgetsmagnetized

C.asilverspoontarnishesD.waterthatcondenses

6.Whatisthemostabundantelementintheearth'satmosphere?

B.

A.carbondioxideB.nitrogenC.neonD.oxygen

7.Ifheatingadiamondatahightemperature,youwillgetthegascalledC.

A.oxygenB.carbonmonoxideC.carbondioxideD.carbon

8.Duringthefollowinggases,whatcanpollutetheair?

D.

A.sulfurdioxide,oxygen,carbonmonoxide

B.sulfurdioxide,carbondioxide,carbonmonoxide

C.sulfurdioxide,carbondioxide,nitrogendioxide

D.sulfurdioxide,carbonmonoxide,nitrogendioxide

9.Whichofthefollowingpairshavethesameelectronicstructure?

C

A.Na,Mg2+B.S,Cl-C.Ne,Na+D.O2-,F

10.TheelementisakindofatomswhichhavethesamenumberofC.

A.neutronsB.electronsC.protonsD.nucleus

试卷B

1.Whichofthefollowingisthechemicalproperty?

D

A.colorB.densityC.boilingpointD.H2canreactwithO2

2.Whichofthefollowingsubstanceisacompound?

C.

A.aluminumB.chlorineC.sugarD.sodium

3.Whichofthefollowingelementsisnon-metal?

B.

A.calciumB.carbonC.magnesiumD.copper

4.Whenasodiumatombecomesasodiumion,B.

A.itsrelativeatomicmasschangesbyoneunit.B.itreleasesoneelectron

C.itgainsoneelectronD.itsatomicnumberchangesbyoneunit

5.TheformulaforthecompoundofthethoriumoxideisThO2.Whichofthefollowingistheformulaforthecompoundofitssulphate?

A.

A.Th（SO4）2B.ThSO4C.Th2（SO4）3D.Th2SO4

6.Whichofthefollowingpairsofelementswouldcombinetoformanioniccompound?

B

A.carbonandsulphurB.calciumandfluorine

C.nitrogenandoxygenD.potassiumandsodium

7.4gOxygencanreactwithBghydrogen.

A.1B.0.5C.2D.4

8.Fe,Fe2+,Fe3+havethesamenumberofC.

A.electronsB.neutronsC.protonsD.atoms

9.Whenwewanttogethydrogeninthelab,whichofthefollowingapparatusisnotused?

B

A.test-tubeB.alcoholburnerC.flumeD.gasjar

10.ElementAcombineswithelementBtoformacompoundC.IftheatomicnumbersofAandBare20and16respectively,theformulaofCisD.

A.A2B2B.A2BC.AB2D.AB

课程名称：

C

1.ThemostlycharacteristicofchemicalchangeD.

A.colorchangingB.givetheheatoffC.formthegasD.formthenewsubstance

2.Whichofthefollowingisthedefinitionoftheterm“element”?

A

Asubstancewhichcannotbesplitintoanythingsimpler

B.Apuresubstance

C.Asubstancewhichcannotbedecomposedbyheating

D.Asubstanceobtainedbydecomposingacompoundbyheating

3.Whichofthefollowingsubstancesiscomposedofhydrogenmolecule?

C.

A.H2SO4B.waterC.hydrogenD.HCl

4.Uponburning,sugardecomposestogiveCO2andH2O,thenwhichofthefollowingelementsarepresentinsugar?

C

A.（C,N,O）B.（C,O）

C.（C,H,maybehasO）D.（C,O,maybehasH）

5.ElementsAandBreacttoformanioniccompoundwithaformulaA2B.IfBhas6electronsintheoutermostshell,howmanyelectronsintheoutermostshelldoesAhave?

B.

A.2B.1C.6D.4

6.ThechemicalpropertiesofanelementdependonD.

A.itsrelativeatomicmass

B.thenumberofprotons

C.thenumberofelectronshellinitsatoms

D.thenumberofoutermostshellelectronsinitsatoms

7.TheoutermostshellofXatomhas1electron,Yhasavalenceof-2,thechemicalformulacomposedofXandYisB.

A.XY2B.X2YC.XYD.X6Y

8.Pourwaterin30ml0.5mol/LofNaOHsolutionto500ml,andtheamount-of-substanceconcentrationofNaOHisA.

A.0.03mol/LB.0.3mol/LC.0.05mol/LD.0.04mol/L

9.TwoelementsRandQhavetheatomicnumbers13and8respectively.TherelativeatomicmassesofRandQare27and16respectively.TheformulamassforthecompoundbetweenRandQisD.

A.43B.75C.83D.102

10.Inthefollowingequation:

xC2H2+yO2==zCO2+2H2O.Thevalueofx,yandzinthebalancedequationareC.

A.2,4and1B.3,8and2C.2,5and4D.2,3and4

课程名称：

D

1.ThechemicalpropertiesofanelementdependonD

A.itsrelativeatomicmass

B.thenumberofprotons

C.thenumberofelectronshellinitsatoms

D.thenumberofoutermostshellelectronsinitsatoms

2.ElementX（atomicnumber11）combineswithelementY（atomicnumber16）toformacompoundZ.whichofthefollowingstatementsarenotcorrect?

C.

A.Zisanioniccompound

B.thechemicalformulaofZisX2Y

C.YismetalandXisnonmetal

D.whenXcombineswithY,eachatomofXlosesoneelectron.

3.ThenumberofprotonisthesameastheB

A.numberofneutron　　　　　　B.numberofelectron

C.thesumofneutronandelectronD.thenumberofatomsinmolecule

4.Whichofthefollowingsubstancesisamixture?

D.

A.carbonB.dryiceC.nitrogenD.seawater

5.Themassofacarbonatomisakg,themassofXatomisbkg,thenwhatistherelativeatomicmassofX?

C

A.12b/aB.a/12bC.b/12aD.12a/b

6.ThenucleusofanatomconsistsofD.

A.electronsB.neutrons

C.protonsandneutronsD.protons,neutrons,andelectrons

7.TheratioofthenumberofCl-in0.5L1mol/LofFeCl3solutionto0.2L1mol/LofKClsolutionisC.

A.1:

3B.3:

1C.15:

2D.5:

2

8.Inmanufacturingfoamrubber,weusethefollowingreactiontogetoxygen:

2H2O2===2H2O+O2↑,andH2O2isB

A.anoxidantB.bothanoxidantandareductant

C.areductantD.neitheranoxidantnorareductant

9.Whichacidbelongstotribasicacid（三元酸）?

D.

A.H3BO3B.H3PO2C.H3PO3D.H3AsO4

10.Whichonebelongstopolarmolecule?

C.

A.PCl5（g）B.XeF2C.NCl3D.BCl3

课程名称：

E

1.ThebestagentforgettingridoftheimpurityFe3+fromZnSO4solutionisC

A.NaOHB.Na2CO3C.ZnCO3D.Zn

2.Whichpairoftheelementshasthemostsimilarproperties?

D

A.MgandAlB.ZrandHfC.AgandAuD.FeandCo

3.Whichoxidedoesn’tproduceO2whenheatedwithconcentratedH2SO4?

B.

A.CrO3B.V2O5C.PbO2D.MnO2

4.ZnreactswithNaHSO3togiveC.

A.Na2S2O4B.Na2S2O3C.Na2SO3D.Na2SO4

5.About

Aelements,fromGetoPb,,whichpropertyincreasesaccordingtotheincreaseofatomicnumber（原子序数）?

A.

A.themeltingpointoffreeelementB.theacidityofdioxide

C.thestabilityof+2oxidationnumberD.thestabilityofhydrides

6.Whichnitratedecomposeswhenheatedtogiveafreeelement?

B.

A.AgNO3B.Pb（NO3）2C.Zn（NO3）2D.NaNO3

7.Whichgroupofionscanexistinoneacidicsolutionsimultaneously（同时地）?

B.

A.K+,I-,SO42-,MnO4-　B.Na+,Zn2+,SO42-,NO3-

C.Ag+,AsO43-,S2-,SO32-D.K+,S2-,SO42-,Cr2O72-

8.WhichgivesthehighestconcentrationofH+when1molofthefollowingcompoundsdissolvesin1Lwater?

C

A.SO3B.P4O10C.HFD.MgH2

8.MetalCaburnsintheairtogiveA.

A.CaOB.CaOandCaO2

C.CaO2D.CaOandalittleCa3N2

9.WhichcompoundcanbeusedtodryH2?

D.

A.CaCO3B.Ca3（PO4）2C.CaCl2D.Ca（OH）2

10.Whichofthefollowingmoleculeshastwolengthsofbonds?

A.

A.CO2B.SO3C.SF4D.XeF4

课程名称：

F

1.AllthesubstancesinthePeriodicTableareB.

A.solidsB.elementsC.compoundsD.metals

2.Whichparticlehasanegativecharge?

C.

A.neutronB.atomC.electronD.molecule

3.Whichofthefollowingsubstanceisacompound?

B.

A.milkB.glucoseC.sulphurD.air

4.Whichoneofthefollowingsubstancesconductselectricitywithoutanychemicalchange?

C.

A.sodiumchlorinesolutionB.distilledwater

C.magnesiumribbonD.moltenlead（II）bromide

5.MoltensodiumchlorideisgoodconductorofelectricitybecauseD.

A.itcontainssodiumandchlorineatomsB.itcontainssodiumandchlorineions

C.itcontainssodiumandchlorinemoleculeD.itcontainsmobileions

6.MetalsaregoodconductorsofheatandelectricitybecausetheyC.

A.haveshinysurfaceB.consistofelectrons

C.havefree-movingelectronsD.haveelectronsthatdonotformbonds

7.Whichoneofthefollowingequationsisbalanced?

D.

A.H2+O2→H2OB.Mg+O2→2MgO

C.2Al+3H2O→Al2O3+2H2D.Mg+2HCl→MgCl2+H2

8.Whichofthefollowingmethodswillbesuccessfulinpreventingironfromrusting?

C.

①ironjointedtoapieceofzinc②ironcoveredwithzinc

③ironjoinedtoapieceofcopper④ironcoveredwithcopper

A.①and②onlyB.②and④only

C.①,②and④onlyD.②,③and④only

9.Whichofthefollowingisoneproductofthereactionbetweenametalandanacid?

A.

A.saltB.alkaliC.carbondioxideD.water

10.MethaneisthemaincomponentofA.

A.naturalgasB.towngasC.liquidpetroleumgasD.petrol

课程名称：

G

1.Onesubstanceisclassifiedasanon-metaleventhoughitconductselectricity.ThissubstanceisD.

A.iodineB.ironC.oxygenD.g