Question

give reason to justify that aluminium oxide is an amphoteric oxide​

Answer 1

Answer:

Aluminium oxide is amphoteric. It has reactions as both a base and an acid. ... The oxide ions are held too strongly in the solid lattice to react with the water. Reaction with acids: Aluminum oxide contains oxide ions, and thus reacts with acids in the same way sodium or magnesium oxides do.

Answer 2

Answer:

Amphoteric oxides acts as both acidic oxide and basic oxide.

Al2O3 + 6 HCl ---> 2 AlCl3 + 3 H2O

Al2O3 + 2 NaOH ----> 2NaAlO2 + H2O