Metal A burns in air, on heating, to form an oxide A 2 O 3 whereas another metal B burns in air only on strong heating to form an oxide BO. The two oxides A 2 O 3 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 A 2 O 3 ? (b) What is the nature of oxide BO? (c) Name one metal like A. (d) Name one metal like B.

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.

(a) Amphoteric oxide is the nature of oxide A₂O₃.

(b) The nature of oxide BO is amphoteric.

(c) One metal like A is aluminium (Al).

(d) One metal like B is Zinc (Zn).

90