Name the reagent that is used in leaching of gold. – InterviewSolution

1.	Name the reagent that is used in leaching of gold.
Answer» Carbon Sodium cyanide Carbon monoxide lodine Solution : LEACHING involves the treatment of the ore with a suitable reagent so as to make it soluble while impurities remain INSOLUBLE. Leaching of GOLD is done with the help of their dissolution in NaCNor KCN or Cu with the help of H or Fe scrap. `4Au(s)+8CN+O_2(G)+2H_2O rarr4[Au(CN)_2]^-+4OH^-`

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