Pick out the wrong statement.

In Parke's process, zinc is added to remove silver from lead

In the Pidgeon process of producing magnesium, powdered ferro-silcon is used as the reducing agent

Molten lead is used for shock cooling of the zinc vapours in the zinc blast furnace

Pure copper electrodes are used as anode for electro-refinning of copper

Answer

Answer: Option D

Answer: Option D

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