What is Amphoteric oxide?

Question

want to know about it????

Answer 1

it is essentially something which can act as a base or an acid. Some common examples are calcium oxide, zinc oxide and aluminium oxide.

Answer 2

An amphoteric oxide is an oxide that can act both as an acid and as a base. An example is aluminium oxide, Al2O3. It reacts with acids to form the corresponding aluminium salt, and with bases to form salts called aluminates.

Example reactions

Al2O3 + 6HCl → 2AlCl3 + 3H2O

Al2O3 + 2NaOH → Na2Al2O4 + H2O

Answer 3

An AMPHOTERIC oxide has a duality of behaviour.

In acidic conditions it behaves as a base

In alkaline conditions it behaves as an acid.

Aluminium Oxide(Al2O3) is probably the best known amphoteric oxide.