The reaction that occurs all the anode when CuSO4(aq) is electrolyzed using carbon electrode is

The reaction that occurs all the anode when CuSO_4(aq) is electrolyzed using carbon electrode is

A 2H ^- _(aq) + 2e â†’ H _2(g)
B Cu²⁺ _(aq) + 2e â†’ Cu _(s)
C 4OH _(aq) _-4e â†’ 2H₂O_(l) + O2 _(g)
D SO_4(aq)² _-2e â†’ SO _2(g) + O_2(g)

waec 2014 chemistry

The correct answer is C. 4OH _(aq) _-4e â†’ 2H₂O_(l) + O2 _(g)

No explanation given

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