Which of the following oxides react with both $H C l$ and $N a O H$ ?

C a O

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N_{2} O_{5}

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{C O}_{2}

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Z n O

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Solution

The correct option is D $Z n O$
Those compounds which react with both acid and base are called amphoteric compound. $Z n O$ is an amphoteric compound.

$Z n O + 2 N a O H ⟶ {N a}_{2} {Z n O}_{2} + H_{2} O$

$Z n O + 2 H C l \to Z n C l_{2} + H_{2} O$

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