Class/Course - Engineering Entrance

Subject - Chemistry

Chapter - Principles and Processes of Metallurgy

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Q.1 Refining of impure copper with zinc impurity is to be done electrolysis using electrodes as
  cathode - pure copper, Anode - pure zinc
  cathode - pure zinc, Anode - copper
  cathode - pure copper, Anode - impure copper
  cathode - pure zinc, Anode - impure zinc