Which method is not correct given for refining of crude metals?

Distillation : Zinc and mercury

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Liquation : Tin

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van Arkel : Zirconium

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Mond process : Lead

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Solution

The correct option is C Mond process : Lead
Mond process is used for the refining of nickel.

Nickel is heated with CO to form highly volatile nickel tetracarbonyl.

It is then decomposed to pure nickel at high temperature.

Option D is correct.

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