氧气,二氧化碳,氮气
Quiz
•
Physics, Science
•
8th - 9th Grade
•
Practice Problem
•
Medium
LIM KANG林惟康
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21 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
空气是一种...
纯净物
混合物
单质
有机物
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
下列气体当中哪些气体对人体无害?(多选题)
氮气
氧气
氯气
硫化氢
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
哪一种方式可以用来辨别二氧化碳和氧气?
是否能使人类呼吸
倾倒气体,能使蜡烛熄灭
燃烧后是否会产生爆鸣声
是否能溶于水
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列是氮气的用途,除了
肥料
冷冻保存技术
炸药
飞艇的燃料
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
氮气在空气中扮演了怎样的角色?
冲淡氧气
没有氮气物体不能燃烧
能使环境维持在固定的温度
减少大气压强
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
选项中哪些是属于稀有气体?(多选题)
氨气
氩气
氦气
氖气
氮气
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
稀有气体不具有下列哪些性质?
不活泼
不参与任何的化学反应
化学元素周期表最右边的族
在空气中含量不多
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