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Chemistry · Oct / Nov 2023 · Paper 12 · Question 12

5070Electrolysis

Aqueous copper(II) sulfate is electrolysed using copper electrodes. Which row correctly describes what happens?

  1. Aincreases / decreases / remains blue
  2. Bremains the same / decreases / becomes colourless
  3. Cdecreases / increases / remains blue
  4. Dremains the same / increases / becomes colourless

As printed in the paper

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Correct answer: C. decreases / increases / remains blue

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