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Chemistry · Oct / Nov 2018 · Paper 12 · Question 12

5070Electrolysis

What is observed during the electrolysis of aqueous copper(II) sulfate using carbon electrodes?

  1. AA pink solid is deposited on the anode.
  2. BBubbles form on the negative electrode.
  3. CThe colour of the solution fades.
  4. DThe negative electrode becomes smaller.

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Correct answer: C. The colour of the solution fades.

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