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Question

In the Castner process for the extraction of sodium, the anode is made of:

A
copper
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B
iron
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C
sodium
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D
nickel
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Solution

The correct option is D nickel
In the Castner process for the extraction of sodium, the anode is made of nickel metal. The schematic is shown in the attached image.
121755_14376_ans_50bcc0c85cf34e2d94e50834ff050abd.png

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