When dilute copper (ll) chloride solution is electrolysed, the reaction at the cathode is represented by the equation

Assessment: WAEC SSCE - Chemistry - 1999 (Objective) Subject: Chemistry

Question 1 Report

When dilute copper (ll) chloride solution is electrolysed, the reaction at the cathode is represented by the equation
Answer Details
The reaction at the cathode during electrolysis of dilute copper (II) chloride solution can be determined by analyzing the oxidation states of the species involved. In the electrolysis of copper (II) chloride solution, the positive copper ions (Cu2+) migrate towards the cathode (negatively charged electrode), where they gain electrons and are reduced to form copper atoms (Cu). Therefore, the equation representing the reaction at the cathode is: Cu2+ + 2e- → Cu Option (ii) represents this equation and is the correct answer.
Read lesson note on Electrolysis (JAMB)
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