Ag_2S + NaCN + Zn rightarrow AgThis method of | vedclass

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(B) The cyanide process is used for the extraction of $Ag$,which is also known as the $McArthur-Forest$ process.The reactions occurring during the ext

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McArthur-Forest method

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(B) The cyanide process is used for the extraction of $Ag$,which is also known as the $McArthur-Forest$ process.The reactions occurring during the extraction of silver are:$Ag_2S + 4NaCN \rightleftharpoons 2Na[Ag(CN)_2] + Na_2S$ (Reversible reaction)$2Na_2S + 2O_2 + H_2O \rightarrow Na_2S_2O_3 + 2NaOH$ (The presence of $O_2$ shifts the equilibrium to the right by removing $Na_2S$)$2Na[Ag(CN)_2] + Zn \rightarrow Na_2[Zn(CN)_4] + 2Ag$ (Displacement reaction)

$Ag_2S + NaCN + Zn \rightarrow Ag$
This method of extraction of $Ag$ by complex formation and then its displacement is called:

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$Ag_2S + NaCN + Zn \rightarrow Ag$This method of extraction of $Ag$ by complex formation and then its displacement is called: