12th Class Chemistry Electrochemistry / विद्युत् रसायन Question Bank 12th CBSE Chemistry Electrochemistry

  • question_answer
      How is electrolysis used in purification of copper metal?

    Answer:

      Impure copper rod is made anode pure copper wire is made cathode. Solution of salt of copper is made electrolyte. On passing electricity Cu from anode dissolves into solution and from solution it is deposited at cathode. Anode reaction: Cathode reaction: In this way electrolysis is used for the purification of copper.


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