Question

What are amphoteric oxides? Give two examples of amphoteric oxides. Prove the amphoteric nature with an exampleNCERT Class XScience - ScienceChapter_Metals and Non Metals

Answer 1

The metal oxides which react with both acid and base to produce salt and water they are called amphotetic oxides.
eg 1. ZnO + HCl = Zncl2 + H2O
ZnO + Naoh = Na2ZnO2 + H2O
2. Al2O3 + HCl = Alcl3 + H2O
Al203 + Naoh = NaAlO2 + H2O

Answer 2

Those metal oxides which show basic as well as acidic behaviour are known as amphoteric oxides. Amphoteric oxides react with both acids as well as bases to form salts and water. The two examples of amphoteric oxides are aluminium oxide (Al,O3) and zinc oxide (ZnO).

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