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Question

Which of the following process is generally used for extracting sodium metal?


A

Heating

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B

Roasting

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C

Reducing by carbon

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D

Electrolysis

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Solution

The correct option is D

Electrolysis


The metals high up in the reactivity series are very reactive. They cannot be obtained from their compounds by heating with carbon. This is because these metals have more affinity for oxygen than carbon. These metals are obtained by electrolytic reduction. Since sodium is highly reactive metal it is also obtained by electrolytic reduction.


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