What are amphoteric oxides? Give two examples of amphoteric oxides.

Solution: Oxides that react with both acids and bases to form salt and water are known as amphoteric oxides. Examples: PbO and Al₂O₃.

Amphoteric oxides are the one which react with both acids and bases to form salt and water. Examples: Lead oxide – PbO and Aluminium oxide – Al₂O₃.