Question

In the electroplating of an article with silver, the electrolyte sodium argentocyanide solution is preferred over silver nitrate solution.

Answer 1

• The Sodium argentocyanide is a complex salt.
• Sodium silver cyanide is preferred to silver nitrate as an electrolyte for electroplating an article with silver because the deposition of silver ion is slow and smooth and the coating is smooth.
• It is preferred over silver nitrate (${\mathrm{AgNO}}_3$ solid-state) because the dissociation will be very fast and the deposit will not be smooth and uniform.