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Parke’s process is employed for

1. recovering silver by leaching it with sodium cyanide
2. obtaining copper from chalcopyrite (CuFeS2)
3. separating silver from argentiferous lead
4. extracting silver through amalgam formation

Correct answer: separating silver from argentiferous lead

Solution

Parke's process separates silver from argentiferous (silver-bearing) lead. Molten zinc is added; silver preferentially dissolves in the zinc layer, which is then skimmed off and distilled, recovering the silver.

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