(a) Impure silver is taken as anode. Pure silver is taken as cathode.
(b) Suitable electrolyte is any silver salt such as AgNO3.
(c) We get pure silver at cathode.
In the process of electrolytic refining of silver, impure metal (impure silver) forms the positively charged anode whereas pure metal (pure silver) forms the negatively cathode. Silver nitrate (AgNO3) is taken as an electrolyte. Silver from impure anode dissolves into the solution. Silver ions from the solution are deposited on the cathode.
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