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

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Solution

Electroplating is a process in which coating of metal is done with a thin layer of another metal.
Sodium argentocyanide $Na [Ag {(CN)}_{2}]$ is preferred to silver nitrate as an electrolyte because if we use sodium argentocyanide, the deposition of sliver on the metal article is slow and there is a smooth and uniform plating on the metal surface.

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A metal article is to be electroplated with silver. The electrolyte selected is sodium argentocyanide. Why is it preferred to silver nitrate as an electrolyte?

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