空气、氧气、碳和碳的化合物小测试

Quiz
•
Chemistry
•
9th Grade
•
Hard

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25 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
空气是一种宝贵的资源,下列生产生活中用到的气体不是来自空气的是( )
A.作为燃料电池燃料的H2
B.用于生产氮肥的N2
C.用于医疗急救的O2
D.用于飞艇的He
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
“创建全国文明城市,从我做起”。下列做法与“创文”不相符的是( )
A.积极参加义务植树,增加绿地面积
B.减少城市雾霾,提倡公交出行
C.为了购物方便,提倡使用塑料袋
D.生活垃圾分类投放
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列实验现象描述正确的是( )
A.红磷在空气中燃烧,生成大量白色烟雾
B.硫在氧气中燃烧发出蓝紫色火焰,生成一种有刺激性气味的气体
C.镁条在空气中燃烧,发出白光,生成黑色固体
D.细铁丝在氧气中燃烧,火星四射,生成四氧化三铁
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
硫在空气和氧气中燃烧的实验。下列说法不正确的是( )
A.氧气含量越多硫燃烧越剧烈
B.硫在氧气中燃烧发出蓝紫色火焰
C.瓶底的水可以吸收生成的有害气体
D.硫在空气和氧气中燃烧的生成物不同
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
空气中含量较多且化学性质比较活泼的气体是( )
A.氧气
B.氮气
C.稀有气体
D.二氧化碳
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
不属于空气的气体污染物的是( )
A. CO2
B. SO2
C. CO
D. NO2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列关于氧气的说法正确的是( )
A.氧气具有可燃性,可以支持燃烧
B.水生动物能在水中生存是因为氧气易溶于水
C.工业上利用分离液态空气的方法制取氧气
D.氧气的化学性质很活泼,常温下能与所有物质
发生化学反应
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