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Characteristics of s- Block Elements

Which of the ...

Question

Which of the following is used for reviving the exhausted permutit?

H C l

solution

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10

C a C l_{2}

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10

M g C l_{2}

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10

N a C l

solution

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Solution

The correct option is D $10$ % $N a C l$ solution
The exhausted permutit is regenerated by the reaction with $10$ % $N a C l$ solution. This replaces the calcium ions of the exhausted permutit with sodium ions.
$C a Z + 2 N a C l \to {N a}_{2} Z + C a C l_{2}$

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