Question

Extraction of gold and silver involves leaching with CN–. Silver is later recovered by which process?
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Answer 1

Answer:

it is recovered by the displacement of Zn.

Explanation:

2[Ag(CN)2]– → [Zn(CN)4]2-+2Ag.

Answer 2

Answer: Distillation

Explanation:

Extraction of gold and silver involves leaching with CN- ion. Silver is later recovered by distillation of Zn. In the metallurgy of silver or gold, the respective metal is leached with a dilute solution of NaCN or KCN in the presence of air to obtain the metal in solution as complex.

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