alleryWhich oxidation equation releases oxygen during water electrolysis?
APb2+ + 2e− → Pb
B2H+ + 2e− → H2
CCu → Cu2+ + 2e−
D2H2O → O2 + 4H+ + 4e−
Answer & Solution
Correct answer: D. 2H2O → O2 + 4H+ + 4e−
Water loses electrons at the anode and releases oxygen.
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