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Preparations and Uses of Caustic Soda

Reaction of Z...

Question

Reaction of $Z n (O H)_{2}$ with $N a O H$ produces:

A

N a_{2} (Z n O_{2})

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B

Z n O

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C

N a_{2} O

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D

None of these

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Solution

The correct option is A $N a_{2} (Z n O_{2})$
$Z n (O H)_{2}$ is amphoteric and reacts with $N a O H$
$Z n (O H)_{2} + 2 N a O H ⟶ N a_{2} Z n (O H)_{4}$
The hydrated form of $N a_{2} Z n O_{2}$ is $N a_{2} Z n (O H)_{4}$ .

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