Out of the following oxides, the amphoteric oxide is

Oxides like ${\text{Al}}_{\text{2}}{\text{O}}_{\text{3}}$ , ZnO are amphoteric in nature as they can show both acidic and basic character.

$\text{2A}{l}_2{\text{O}}_{\text{3}}+6\text{HC}l\to 2\text{A}l\text{C}{l}_3+3{\text{H}}_{\text{2}}\text{O}$

$\text{A}{l}_2{\text{O}}_{\text{3}}+2\text{NaOH}\to 2\text{NaA}l{\text{O}}_{\text{2}}+{\text{H}}_{\text{2}}\text{O}$ .