Question

amphoteric oxide definition and example

Answer 1

Amphoteric oxides are those  oxides which can give hydrogen gas when reacting with both the acid and the base.
Some of the examples are aluminium and zinc.

Answer 2

Amphoteric oxides are those oxides that behave dual .....
also as an acid and a base
These oxides are generally used to neutralise the reactions to form the salt and water...
eg...Aluminium Oxide....Al2O3