Chemistry, asked by saicharang2008, 5 days ago

6. Extraction of gold and silver involves leaching with CN-ion. Silver is later recovered by [NEET 2017] a) Liquation b) Distillation c) Zone refining d) Displacement with Z

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Answered by minakshi987

0

Answer:

Extraction of gold and silver involves leaching was CN− ion. Silver is later recovered by displacement with Zn.

Ag2S+4NaCN⇌2Na[Ag(CN)2]+Na2S

2Na[Ag(CN)2]+Zn→Na2[Zn(CN)4]+2Ag↓

Explanation:

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