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Why is zinc oxide called amphoteric?

Answer and explanation

Correct answer: Because it can react with both acids and bases

An amphoteric substance can react with both an acid and a base. Zinc oxide reacts with hydrochloric acid to form zinc chloride and water: ZnO + 2HCl → ZnCl2 + H2O. It also reacts with a strong alkali such as sodium hydroxide to form a soluble zincate. Therefore, option A correctly explains its name; the other choices do not define amphoterism.

Related tags

Zinc-OxideAmphoteric-OxideAcid-BaseChemical-ReactionClass-10AcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And Behaviour

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