
2020年初三上册总复习测试
Quiz
•
Science
•
9th Grade
•
Practice Problem
•
Medium
沈宛慧(古晋一中) 沈宛慧(古晋一中)
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50 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列变化中,与其它三种有本质区别的变化是 ( )
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
柠檬汁能使紫色石蕊溶液变红色, 说明柠檬汁显 ( )
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
化学上常对物质进行分类和研究,下列物质中属于酸的是 ( )
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列关于盐酸的性质中, 属于物理性质的是 ( )
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
硫酸可用于金属表面除锈, 这是因为硫酸 ( )
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列混合气体点燃可能发生爆炸的是( )
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
检验氢气纯度时, 用手拿着充满气体的试管, 在移近火焰时应将( )
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