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Chapter 1 Properties and classification of substances 第一章 单元测验

小提示:本节包含奇怪的同名章节内容

1、 问题:The oxidation number of K and Cl in KCl are_and __, respectively.
选项:
A:+1, -1
B:1, 1
C:1, 0
D:0, -1
答案: 【+1, -1

2、 问题:The oxidation number of Ca and Cl in  are_and __, respectively.
选项:
A:+2, -1
B:-1, +2
C:2, 1
D:-2, +1
答案: 【+2, -1

3、 问题:The oxidation number of Al and O in  are_and __, respectively.
选项:
A:+3, -2
B:-3, +2
C:3, 2
D:-2, +3
答案: 【+3, -2

4、 问题:The oxidation number of Fe atom in Fe is ____.
选项:
A:0
B:+1
C:+2
D:+3
答案: 【0

5、 问题:The oxidation number of N atom in  is ____.
选项:
A:0
B:-1
C:-2
D:-3
答案: 【0

6、 问题:The oxidation number of Na and O in  are_and __, respectively.
选项:
A:+1, -1
B:-1, +1
C:1, 1
D:+1, -2
答案: 【+1, -1

7、 问题:The oxidation number of K, Cr and O in  are_, _and __, respectively.
选项:
A:+1, +6, -2
B:+1, +5, -2
C:+1, +6, -1
D:+1, -6, -2
答案: 【+1, +6, -2

8、 问题:The oxidation number of Ca and F in  are_and __, respectively.
选项:
A:+2, -1
B:2, 1
C:-1, +2
D:+1, -2
答案: 【+2, -1

9、 问题:The oxidation number of Fe in   is_____.
选项:
A:+2 and +3
B:
C:+2
D:+3
答案: 【+2 and +3

10、 问题:The oxidation number of Li, Al and H in  are_, _and __, respectively.
选项:
A:+1, +3, -1
B:-1, -3, +1
C:1, 3, 1
D:-1, +3, -1
答案: 【+1, +3, -1

11、 问题:以下选项中表示“物理性质”的词汇是_____。
选项:
A:physical property
B:chemical property
C:solid substance
D:melting point
答案: 【physical property

12、 问题:以下选项中表示“溶解度”的词汇是_____。
选项:
A:solubility
B:density
C:ductility
D:hardness
答案: 【solubility

13、 问题:以下选项中表示“密度”的词汇是_____。
选项:
A:density
B:solubility
C:hardness
D:malleability
答案: 【density

14、 问题:以下选项中表示“展性”的词汇是_____。
选项:
A:malleability
B:ductility
C:hardness
D:density
答案: 【malleability

15、 问题:以下选项中表示“硬度”的词汇是_____。
选项:
A:hardness
B:malleability
C:ductility
D:density
答案: 【hardness

16、 问题:Which of the following will you classify as oxides? 
选项:
A:carbon dioxide
B:calcium oxide
C:silicon dioxide
D:ammonium hydroxide
E:ammonium chloride
F:nitric acid
G:sodium phosphate
H:calcium chloride
I:potassium hydroxide
J:calcium carbonate
答案: 【carbon dioxide;
calcium oxide;
silicon dioxide

17、 问题:Which of the following properties can be classified as the physical properties of a substance?
选项:
A:hardness
B:density
C:solubility
D:ductility
E:malleability
F:melting point
G:boiling point
H:crystalline form
I:mass
J:volume
答案: 【hardness;
density;
solubility;
ductility;
malleability;
melting point;
boiling point;
crystalline form

18、 问题:Which of the following processes would you classify as chemical reactions?
选项:
A:The burning of paper
B:The formation of rust on iron
C:The boiling of water
D:The preparation of sugar syrup by adding sugar to hot water
E:The manufacture of salt by evaporation of sea water
答案: 【The burning of paper;
The formation of rust on iron

19、 问题:Which of the following will you classify as bases? 
选项:
A:ammonium hydroxide
B:potassium hydroxide
C:ammonium chloride
D:nitric acid
E:sodium phosphate
F:calcium chloride
G:carbon dioxide
H:calcium carbonate
I:calcium oxide
J:silicon dioxide
答案: 【ammonium hydroxide;
potassium hydroxide

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