JEE Main 2002Annual, Paper 1ChemistryEasyRedox Reactions and Electrochemistry138× since 2002When the sample of copper with zinc impurity is to be purified by electrolysis, the appropriate electrodes are :AOption A. cathode = pure zinc, anode = pure copperBOption B. cathode = impure sample, anode = pure copperCOption C. cathode = impure zinc, anode = impure sampleDOption D. cathode = pure copper, anode = impure sampleCheckSkip · show solution
