
初二下册第5+6章
Quiz
•
Science
•
8th Grade
•
Practice Problem
•
Hard
沈宛慧(古晋一中) 沈宛慧(古晋一中)
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29 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
实验室用双氧水制取氧气一般有以下几个步骤,请按顺序排列。 ①向分液漏斗中倒入双氧水 ②向容器中加入少量二氧化锰 ③按要求装配好仪器 ④检查装置的气密性 ⑤收集气体
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
关于用高锰酸钾制取氧气的实验步骤,下列叙述错误的是( )。
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
可以在氧气中燃烧,并产生大量白烟的是( )。
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列关于燃烧的叙述中错误的是( )。
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列属于氧气化学性质的是( )。
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列物质的用途只利用了其物理性质的是( )。
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
向双氧水中加入少量二氧化锰,立即产生大量氧气,下列说法正确的是( )。
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