1.

In isolation of which one of the following metals from their ores, the use of cyanide salt is not commonly involved ? (A) Zinc (B) Gold (C) Silver (D) Copper

Answer»

Correct option is (D) Copper

For ZnS, KCN is used as depressant. 

For Gold and silver ⇒ leaching [Cyanide process]



Discussion

No Comment Found

Related InterviewSolutions