Multiple choice

Which of the following ions act as spectator ions during electrolysis of aqueous copper sulphate solution?

  1. Cu2+, SO42-

  2. H+, SO42–

  3. Cu2+, H+

  4. H+, OH–, SO42–

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

H+ ions, SO42– ions and OH– ions do not take part in an electrolytic reaction and are known as spectator ions.

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