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Preparations and Reactions of Sodium Oxide

Electrolysis ...

Question

Electrolysis of fused anhydrous $K C l . M g C l_{2} . 6 H_{2} O$ gives

A

Potassium only

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B

Magnesium only

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C

Magnesium and chlorine

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D

Potassium and magnesium

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Solution

The correct option is C Magnesium and chlorine
Since the substance is fused and anhydrous, there won't be moisture (water of crystallization). $M g$ is formed at cathode and $C l_{2} (g)$ is evolved at anode.

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