Question

11. Define malleability. Name the most malleable substance.
12. Define displacement reaction. Name the least reactive metal.
13. State two points of differences between metals and non-metals.
14. Give reason why copper cannot displace zinc from its salt solution
15. Why do copper vessels turn green with the passage of time?
16. What happens when sulphur reacts with oxygen?
17. What happens when potassium reacts with air and water?
18. Give the chemical equation/reaction between copper and hydrochloric acid.
19. What happens when non-metals react with oxygen?
20. Mention two uses each of phosphorus and aluminium.


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Answer 1

Answer:

ans 1 The property of metals by which they can be beaten into thin sheets is called malleability

ans

Answer 2

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