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Write the equation for the extraction of silver by leaching with sodium cyanide and show that the leaching process is a redox reaction

Write the equation for the extraction of silver by leaching with sodium cyanide and show that the leaching process is a redox reaction

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1 Answers

Arun
25750 Points
4 years ago
Role of NaCN in the extraction of silver (Ag) is to do the leaching of Ag ore in the presence of air from which the silver is obtained later by replacement.
4Ag + 8CN- + 2H2O + O2 → 4 [Ag(CN)2-] + 4OH-
 

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