S1 CHE Chp2 Revision

Quiz
•
Chemistry
•
10th Grade
•
Easy
Yiing Lee
Used 4+ times
FREE Resource
26 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
水是纯净物的特征是( )。
电解水可以得到氢气和氧气
由氢、氧两种元素组成
可以溶解多种物质
具有固定的组成和性质
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列水的性质,属于水的化学性质的是( )。
通常情况下,水是无色无味的液体
在1.01 X 105 Pa 下,水能在0°C结冰
水在通电的条件下能分解成氢气和氧气
4°C时,水的密度最大,是1 g/cm3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在一定的环境中,常温常压下的水瞬间结成冰,俗称“热冰”。
下列说法正确的是( )。
“热冰”是纯净物
“热冰”在任何条件下都不会融化
“热冰”与水的化学性质不同
液态水变成“热冰”是化学变化
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列金属分别与水反应,反应最容易进行的是( )。
Zn
Fe
Na
Mg
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
已知碳有如图的性质,由此可知在火势旺盛的煤炉中
填加湿煤炭,火焰将会( )。
不旺
更旺
熄灭
维持不变
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪一些物质可以检验水是否存在?
I 无水硫酸铁 II 无水氯化钴 III 无水硫酸铜
I, II
I, III
II, III
I, II, III
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
关于氢气的说法错误的是( )。
点燃氢气前不需要检验其纯度
是无色无味、难溶于水的气体
在空气中燃烧产生淡蓝色火焰
纯净的氢气燃烧时声音很小
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