General Principles And Processes of Isolation Of Elements

General Principles And Processes of Isolation Of Elements

Question

What is the role of zinc metal in the extraction of silver?

Answer

In the extraction of silver, zinc metal act as reducing agent. 
2[Ag(CN)2]-(aq.) + Zn(s) --> 2Ag(s) + [Zn(CN)4]2-(aq.)

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