Question

What are amphoteric oxide give an example write the balanced chemical equation to justify your answer

Answer 1

Amphoteric oxides can be defined as oxides that can behave as an acid as well as a base to produce a salt and water. It can either donate or accept a proton or H+ ion thus acting as base or an acid.

Metals that exhibit amphoterism include copper, zinc, lead, tin, beryllium, and aluminum. A common example of amphoteric oxide is zinc oxide (ZnO).

In base: $ZnO + 2 NaOH + H_{2}O -> Na_{2}[Zn(OH)_{4}$

In acid: $ZnO + H_{2}SO_{4} -> ZnSO_{4} + H_{2}O$

Answer 2

Amphoteric oxides are defined as the oxides which can act like the acid and also base for producing water and salt.  

It can accept or donate the proton or  H+ ion therefore appearing as an acid or a base.

The metals which exhibit amphoterism are tin, copper, lead, zinc, aluminium and beryllium. ZnO (zinc oxide) is a major example of the amphoteric oxide.

In base:

In acid: