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Silver metal is extracted by cyanide pro...

Silver metal is extracted by cyanide process from silver glance `(Ag_(2)S)`. The ore is concentrated through forth floatation process. The concentrated ore is then leached and solution is treated with reducing agent to get spongy silver which is then purified by fusion with an oxidsing agent followed by electrolysis.

A

Silver is precipitated from an aqueous solution of sodium argntocyanide by adding

B

Zinc dust

C

Copper powder

D

Sodium amalgam

Text Solution

Verified by Experts

The correct Answer is:
A
`2Na[Ag(CN)_(2)]+underset("dust")(Zn) to underset(["Via Hydrometallurgical process"])(Na[Zn(CN)_(4)]+2Ag)`
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