Question

1. The oxide of certain metal which can react with an acid as
well as a base.
2. Metals like copper, silver and gold.
3. A reaction in which a more reactive metal displaces a less
reactive metal from its salt solution.
4. A shining material that can be beaten into thin leaves.
5. A metal that can be cut with a knife.​

Answer 1

1) aluminium oxide and zinc oxide reacts with

both acid and base

2) they do not react with acids

3)mg +cu(so)4 gives us mg (so)4+ cu

4) metals

5) gold

Answer 2

Explanation:

Ans. The oxides which behave as acid as well as base are called amphoteric oxides e.g., Al2O3 and ZnO are amphoteric oxides; they both react with acid as Well as base to give salt and water. 7. Name two metals which will displace hydrogen from dilute acids and two metals which will not.