Question

Explain Amphoteric Oxides of Metals.​

Answer 1

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Amphoteric oxides are metal oxides which react with both acids as well as bases to form salt and water.

For example – Al2O3,ZnO,PbO,SnO

Al2O3(s)+6HCl(aq)→2AlCl3(aq)+3H2O(l)

Al2O3(s)+2NaOH(aq)→2NaAlO2(aq)+H2O(l)

ZnO(s)+2HCl(aq)→ZnCl2(aq)+H2O(l)

ZnO(s)+2NaOH(aq)→Na2ZnO2(aq)+H2O(l)

Answer 2

An amphoteric oxide is an oxide that can act as either an acid or base in a reaction to produce a salt and water. ... Because metals have multiple oxidation states, they form amphoteric oxides and hydroxides