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WAEC - Chemistry (2014 - No. 30)

The reaction that occurs all the anode when CuSO4(aq) is electrolyzed using carbon electrode is
2H - (aq) + 2e → H 2(g)
Cu2+ (aq) + 2e → Cu (s)
4OH (aq) -4e → 2H2O(l) + O2 (g)
SO4(aq)2 -2e → SO 2(g) + O2(g)

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