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`.

Explanation

(a). Amphoteric oxide
(b). Amphoteric oxide
(c). Aluminium , Al. (d). Zinc, Zn