Question

write chemical equations that shows aluminium oxide react with acid as well as base?

Answer 1

Al2O3+6HCl→2AlCl3+3H2O reaction with acid

Al2O3+2NaOH+3H2O→2NaAl(OH)4 reaction with base

Answer 2

Explanation:

Aluminium oxide $(Al_2O_3)$ is an amphoteric oxide which means it can react with both acid as well as with base.

• The reaction of aluminium oxide with an acid:

The acid taken is hydrofluoric acid and its reaction with aluminium oxide yields aluminium fluoride and water. The equation follows:

$Al_2O_3+6HF\rightarrow 2AlF_3+3H_2O$

• The reaction of aluminium oxide with a base:

The acid taken is sodium hydroxide and its reaction with aluminium oxide yields only one product which is sodium aluminate. The equation follows:

$Al_2O_3+6NaOH+3H_2O\rightarrow 2Na_3Al(OH)_6$

Hence, it reacts with both acid and a base.