Question

The process of concentration silver ore is based on its solubility in(a)hcl (b)hno3 (c)kcn (d)naoh

Answer 1

Kcn ....

Hope it helps uh !!

Answer 2

(c)KCN

Cyanide process (Mac Arthur Forrest Process):

This is excellent interaction for expelling silver from the mixture process. It depends on how silver dissolves and weakens the arrangement of sodium/potassium cyanide in the presence of oxygen with the development of complex cyanide.

$Ag_2S+4KCN$→$2K[Ag(CN)_{2}]+K_{2} S$

From the complex formed silver can be extracted by reacting it with $Zn$.

$2K[Ag(CN)_{2}]+Zn$→$K_{2} [Zn(CN)_{4} ]+2Ag$

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