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An article to be electroplated by silver is taken as cathode during electrolysis. The electrolyte to be taken during this process would be
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a
AgCl
b
AgNO3
c
KAgCN2
d
Ag2S2O3
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Correct option is C
Only small amounts of ‘Ag’ is required to electroplate the articles, a layer of silver is required;So Silver ion must not be freely available.Only small amounts of Silver ion must be obtained from the electrolyte;Silver ion if present as a complex cannot be ionized easily. Very little amount of it will be available due to decomposition of complex ion;So a complex salt, KAgCN2 of silver is selected as the electrolyte;Similar Questions
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