Chemistry
The following questions refer to the electroplating of an article with silver:
(a) Name the electrode formed by the article to be plated.
(b) Name the electrolyte used.
(c) Silver nitrate is a good electrolyte. Why it is not used?
Electrolysis
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Answer
(a) Cathode
(b) Sodium argentocyanide Na[Ag(CN)2] or Potassium argentocyanide K[Ag(CN)2]
(c) If silver nitrate solution is used directly instead of double cyanide of sodium and silver, the deposition of silver will be very fast and hence not very smooth and uniform.
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