Name the reagent that is used in leaching of | vedclass

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(B) In the process of leaching gold,the ore is treated with a dilute solution of sodium cyanide $(NaCN)$ in the presence of air or oxygen $(O_2)$.This

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Sodium cyanide

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(B) In the process of leaching gold,the ore is treated with a dilute solution of sodium cyanide $(NaCN)$ in the presence of air or oxygen $(O_2)$.This results in the formation of a soluble complex,sodium dicyanoaurate$(I)$,represented by the equation: $4Au(s) + 8CN^-(aq) + 2H_2O(aq) + O_2(g) \rightarrow 4[Au(CN)_2]^-(aq) + 4OH^-(aq)$.

Name the reagent that is used in leaching of gold.

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