Question

1. Metal A burns in air, on heating, to form an oxide A2O3 whereas another metal B burns in air only on strong heating to form an oxide BO. The two oxides A2O3 and BO can react with hydrochloric acid as well as sodium hydroxide solution to form the corresponding salts and water.

(a) What is the nature of oxide A2O3 ? ………………………………

(b) What is the nature of oxide BO ? ………………………………

(c) Name one metal like A. ……………………………………………..

(d) Name one metal like B

Answer 1

Answer:

i)The nature of oxide A₂O₃  is amphoteric nature.

ii)The nature of oxide BO  is amphoteric nature.

iii) Aluminium is like metal A

iv) Zinc is like metal B

Explanation:

Since both oxides  A₂O₃ and BO can react with Hydrochloric acid as well as Sodium Hydroxide solution to form the corresponding salts and water, it means they can react with both acid and base to form salt.  

The compounds which can react with both acid and base and undergo neutralization to form salt and water are called as amphoteric compounds.

iii) Aluminium is like metal A because Aluminium also form  Al₂O₃ when reaction takes place with oxygen

iv) Zinc is like metal B ZnO is also like BO

Hence,

i) The nature of oxide A₂O₃  is amphoteric nature.

ii) The nature of oxide BO  is amphoteric nature.

iii) Aluminium is like metal A

iv) Zinc is like metal B

HOPE THIS HELPS YOU..........

PLZ MARK AS BRAINLEST.......