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When the sample of copper with zinc impurity is to be purified by electrolysis, the appropriate electrodes are

Options

  1. Acathode - pure zinc anode - pure copper
  2. Bcathode - impure sample anode - pure copper
  3. Ccathode - impure zinc anode - impure sample
  4. Dcathode - pure copper anode - impure sample

Correct answer

D. cathode - pure copper anode - impure sample

Step-by-step solution

Pure metal always deposits at cathode

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