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Question

Zinc oxide reacts with both NaOH and HCl, thus it is called ________.


A

Basic oxide

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B

Acidic oxide

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C

Amphoteric oxide

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D

None of these

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Solution

The correct option is C

Amphoteric oxide


Since Zinc oxide is reacting with both acid and base, it is an amphoteric oxide(oxides which react both with acids and bases)

ZnO + 2 NaOH + H2O → Na2[Zn(OH)4]

ZnO + 2HCl → ZnCl2 + H2O.


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