1.

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

Answer»

Zn dust
Cu power
NaHg
`Na_(2)S_(2)O_(3)`

Solution :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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