
初三:酸和氢气2
Quiz
•
Chemistry
•
1st Grade
•
Hard
LIM KANG林惟康
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11 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
下列哪个不是硫酸的用途
做成火药
冶炼金属
做成干燥剂
布料染色
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪一个不是盐酸的性质
使石蕊试液变红色
会与碱反应,生成盐和水
具有挥发性
能分解金、银等不活泼金属
3.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
验证某液体是盐酸的方法?
加入氯化钡,会产生沉淀就是盐酸
加入硝酸银,会产生沉淀就是盐酸
加入铜,会产生氢气就是盐酸
将此液体滴在白糖上,会产生黑色的碳就是盐酸
4.
MULTIPLE SELECT QUESTION
1 min • 2 pts
下列哪种气体能把氧化铜还原成铜?
二氧化碳
氮气
氢气
氧气
5.
MULTIPLE SELECT QUESTION
1 min • 1 pt
以下哪些方法适合收集氢气?(多选题)
排水集气法
向下排气法
向上排气法
呼吸大法
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列各组混合物,点燃后可能发生爆炸的是
氢气和氮气
氢气和氧气
二氧化碳和氧气
氧气和氮气
7.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
碳酸钙(贝壳、鸡蛋壳的主要成分)和盐酸进行反应后会产气泡,请问这个气泡的成分是?
二氧化碳
氢气
氧气
氮气
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