From which of the following is silver obtaine | vedclass

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(C) In the hydrometallurgical process for the extraction of silver,$Na[Ag(CN)_2]$ is formed by the leaching of silver ore with $NaCN$ solution.To reco

Vedclass · Accepted Answer

$Zn$

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(C) In the hydrometallurgical process for the extraction of silver,$Na[Ag(CN)_2]$ is formed by the leaching of silver ore with $NaCN$ solution.To recover silver from this complex,a more electropositive metal like zinc $(Zn)$ is added.The displacement reaction is: $2Na[Ag(CN)_2] + Zn \rightarrow Na_2[Zn(CN)_4] + 2Ag$.Since $Zn$ is more reactive than $Ag$,it displaces silver from the complex.

From which of the following is silver obtained by the reaction with $Na[Ag(CN)_2]$?

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