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05/09/2021 6:03 pm
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What are amphoteric oxides? Give examples of two amphoteric oxides.
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05/09/2021 6:05 pm
These are oxides that can act both as acid and base. For example, aluminium oxide (Al2O3) and zinc oxide (ZnO). The amphoteric character of zinc oxide is shown by the following reactions.
ZnO(s) + 2HCl(aq) → ZnCl2(aq) + H2O(aq)
(Basic nature) Zinc chloride
ZnO(s) + 2NaOH(aq) → Na2ZnO2(aq) + H2O(aq)
(Acidic nature)
This post was modified 4 years ago by Shivani siva