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CBSE Class 8 Chemistry Materials: Metals and Non-metals (Hard)
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Question 1 of 10
1. Question
When a copper vessel is exposed to moist air for long, it acquires a dull green coating. The green material is a mixture of
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Question 2 of 10
2. Question
When sulphur dioxide is dissolved in water __________ is formed.
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Question 3 of 10
3. Question
A substance which cannot be broken down further by chemical reactions, by cooling, heating, or by electrolysis, is called ______
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Question 4 of 10
4. Question
They are not sonorous and are poor conductors of heat and electricity. These materials are
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Question 5 of 10
5. Question
Which one of the following is non metal?
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Question 6 of 10
6. Question
When non-metals react with water then
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Question 7 of 10
7. Question
metals oxides are of naturer
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Question 8 of 10
8. Question
The metal which can be cut with a knife
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Question 9 of 10
9. Question
Which one of the following is a good conductor of electricity?
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Question 10 of 10
10. Question
A substance which cannot be broken down further by chemical reactions, by cooling, heating, or by electrolysis, is called
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