英语化学考试题及答案.docxVIP

英语化学考试题及答案

试题部分：

单项选择题（每题2分，共20分）

1.WhichofthefollowingelementshasthechemicalsymbolO?

A.Oxygen

B.Nitrogen

C.Hydrogen

D.Carbon

2.Whatisthechemicalformulaforwater?

A.H2O2

B.HO2

C.H2O

D.HO

3.Theprocessbywhichasubstancechangesfromaliquidtoagasiscalled:

A.Condensation

B.Sublimation

C.Evaporation

D.Deposition

4.Whichofthefollowingisabaseinchemistry?A.HCl

B.NaOHC.H2SO4

D.CH3COOH

5.ThepHscalerangesfrom:

A.0to10B.0to14C.1to10D.1to14

6.Whichofthefollowingrepresentsanionicbond?

A.NaCl

B.CO2

C.H2O

D.O2

7.Themolecularformulaformethaneis:

A.CH4B.C2H6

C.C3H8

D.C4H10

8.Thechemicalsymbolforironis:

A.Ir

B.Fe

C.ID.In

9.Theprocessofbreakingdownacompoundintoitssimplersubstancesbyelectrolysisiscalled:

A.Synthesis

B.Analysis

C.Decomposition

D.Combustion

10.Whichofthefollowingisanoblegas?

A.Helium

B.Sodium

C.Chlorine

D.Potassium

多项选择题（每题4分，共40分）

11.Whichofthefollowingarepropertiesofmetals?

A.ConductelectricityB.Highmeltingpoints

C.Brittle

D.Malleable

12.Thefollowingareexamplesofacids:A.HCl

B.NaOHC.H2SO4

D.CH3COOH

13.WhichoftheseelementsarefoundinGroup17oftheperiodictable?

A.Fluorine

B.Chlorine

C.Bromine

D.Iodine

14.Whichofthefollowingstatementsaboutisotopesaretrue?

A.TheyhavethesameatomicnumberB.Theyhavethesamemassnumber

C.Theyhavethesamenumberofprotons

D.Theyhavedifferentnumberofneutrons

15.Thefollowingaretypesofchemicalreactions:

A.Synthesis

B.Decomposition

C.Doubledisplacement

D.Combustion

16.Whichoftheseareexamplesofhomogeneousmixtures?

A.Saltwater

B.Air

C.Sandinwater

D.Steel

17.ThefollowingelementsarefoundinGroup2oftheperiodictable:

A.Beryllium

B.Magnesium

C.CalciumD.Potassium

18.Whichofthefollowingarecharacteristicsofcovalentbonds?

A.Foundbetweenmetalsandnon-metals

B.Involvessharingofelectrons

C.