Question

What are amphoteric oxides? Choose the amphoteric oxides from amongst the following oxides: Na2O, ZnO, Al2O3, CO2, H2O

Answer 1

Al2o3 is an amphoteric oxide bcz it shows acidic as well as basic nature .
Al2o3 + base = salt + water
Al2o3 + acid = salt + water

Answer 2

amphoteric oxides are those oxide which show acidic or basic both nature AL2O3 are the amphoteric oxides