JAMB - Chemistry (1988 - No. 9)
Which of the following reactions takes place in the cathode compartment during the electrolysis of copper (II) chloride solution?
Cu2+ + 2e- → Cu(s)
2Cl- -2e → Cl2
Cu(s) -2e → Cu2+(aq)
Cu2+(aq) + 2Cl-(aq) → CuCl2(aq)
Explicació
During the electrolysis of CuCl\(_2\), the reduction of Cu\(^{2+}\) ions to copper metal (Cu) occurs at the cathode.
This reaction is represented by: Cu\(^{2+}\)(aq) + 2e\(^-\) → Cu(s).