A white amphoteric oxide reacts with sodium hydroxide to give sodium zincate and water. Name this amphoteric oxide.

Potassium hydroxide

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Sodium oxide

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Zinc oxide

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Lead oxide

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Solution

The correct option is C
Zinc oxide

Zinc oxide, a white amphoteric oxide, reacts with sodium hydroxide to give sodium zincate and water.

$Z n O + 2 N a O H \to N a_{2} Z n O_{2} + H_{2} O$

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