Leaching of Ag_2S is carried out by heating i | vedclass

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(D) The leaching of silver ore $(Ag_2S)$ is a process of hydrometallurgy where the ore is treated with a dilute solution of sodium cyanide $(NaCN)$ in

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$NaCN$ in presence of $O_2$

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(D) The leaching of silver ore $(Ag_2S)$ is a process of hydrometallurgy where the ore is treated with a dilute solution of sodium cyanide $(NaCN)$ in the presence of air (oxygen) to dissolve the silver as a complex.The chemical reaction is: $Ag_2S + 4NaCN \xrightarrow{Air} 2Na[Ag(CN)_2] + Na_2S$.The silver is then recovered from the complex by displacement using zinc dust: $2Na[Ag(CN)_2] + Zn 	o Na_2[Zn(CN)_4] + 2Ag \downarrow$.

Leaching of $Ag_2S$ is carried out by heating it with a dilute solution of

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