A concentrated solution containing H+, Cu2+, OH- and Cl- was electrolyzed using platinum electrodes. The…

Chemistry JAMB 2005

A concentrated solution containing H+, Cu2+, OH- and Cl- was electrolyzed using platinum electrodes.
The ion that will be discharged at the cathode is?

  • Cu2+ checkmark
  • Cl-
  • H+
  • OH-

The correct answer is: A

Explanation

Metallic ions are discharged at the cathode

Ions lower in the electrochemical series are most easily discharged

Cu\(^+\) will be preferentially discharged

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