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In which of the following electrolysis in aqueous medium, mass of anode decreases and `pH` of solution remains unchanged?A. Electrolysis of aqueous `AgNO_(3)` using silver anode and copper cathodeB. Electrolysis of aqeous `CuSO_(4)` using pure copper anode and impure copper cathode.C. Electrolysis of aqeous `AgNO_(3)` using gold anode and silver cathodeD. Electrolysis of aqeous `CuSO_(4)` using silver anode and platium cathode. |
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Answer» Correct Answer - A::B::D Anode: (A) `AgrarrAg^(+)+e^(-)`,(B) `CurarrCu^(2+)+2e^(-)`, (C) `AgrarrAg^(+)+e^(-)` (D) `2H_(2)OrarrO_(2)+4H^(+)+4e^(-)` Cathode: (A) `Ag^(+)+e^(-)rarrAg` (B) `Cu^(2+)+2e^(-)rarrCu` (C) `Cu^(2+)+2e^(-)rarrCu` (D) `Ag^(+)+e^(-)rarrAg` |
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