what is amphoteric oxides ? given an example . write balanced chemical equations to justify your answer
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Amphoteric oxides are those oxides who react with acids as well as bases to give salt and water.
Eg. Pb2O3 , ZnO
ZnO + 2HCl -> ZnCl2 + H2O
ZnO + 2NaOH -> Na2ZnO2 + 2H2O
Na2ZnO2 is a complex salt called Sodium Zincate.
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