11th Class Physics Motion In a Plane / समतल में गति Question Bank 11th CBSE Physics Mathematics Two Dimensional Motion, Relative Motion

  • 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. In this way electrolysis is used for the purification of copper.


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