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Silver metal is extracted from Ag(2) S b...

Silver metal is extracted from `Ag_(2) S` by cyanide process. The one is concentrated through froth floation process. The concentrated ore is the leached and solution is r ed with reducing agents to get spongy silver which then purified by fusion with an oxidant followed by electrolysis.
Ag is precipitated from an aqueous solution of sodium argentocynide by adding

A

Zn dust

B

Cu power

C

NaHg

D

`Na_(2)S_(2)O_(3)`

Text Solution

Verified by Experts

The correct Answer is:
A
Recovery of Ag :
`underset("Sodium Argento cyanide")(2Na[Ag(CN)_(2)]+Zn) to underset("Sodium Zincoyanide")(Na_(2)[Zn(CN)_(4)]+2Ag)`
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