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Chemistry · May / June 2025 · Paper 12 · Question 13

5070Electrolysis

What are the products formed at the two electrodes when aqueous copper(II) sulfate is electrolysed using copper electrodes?

  1. Aaqueous copper(II) ions, copper metal
  2. Baqueous copper(II) ions, hydrogen gas
  3. Coxygen gas, copper metal
  4. Doxygen gas, hydrogen gas

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Correct answer: A. aqueous copper(II) ions, copper metal

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