Extraction of gold and silver involves l...

Extraction of gold and silver involves leaching with `CN^(Theta)` ion. Silver is later recovered by -

distillation

zone refining

displacement with Zn

liquation

Text Solution

Verified by Experts

The correct Answer is:

`2Na[Ag(CN)_(2)]+Zn rarr Na_(2)[Zn(CN)_(4)]+2Agdarr`

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