Identify amphoteric oxide from the following Al2O3, ZnO, MgO, CaO,Fe2O3.
Write the reactions of amophoteric oxides with dil. HCl and NaOH
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Answer:
Al2O3 and ZnO
Explanation:
Al2O3 + HCl = AlCl3 + H2O
Al2O3 reacts with NaOH to form sodium aluminate, Na2Al2O4,
ZnO + 2HCl → ZnCl2 + H2O
Zinc oxide react with sodium hydroxide to produce zincate sodium and water
Na2zno2+h2o
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