Chemistry · Electrochemistry
In the electrolysis of an aqueous sodium chloride solution, which of the following half-cell reactions actually occurs at the anode due to overpotential of oxygen?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Cl−(aq) → 12Cl2(g) + e− ; E° = 1.36 V✓
- 2H+(aq) + e− → 12H2(g) ; E° = 0.00 V
- 32H2O(l) → O2(g) + 4H+(aq) + 4e− ; E° = 1.23 V
- 4Na+(aq) + e− → Na(s) ; E° = −2.71 V
Correct answer
Cl−(aq) → 12Cl2(g) + e− ; E° = 1.36 V
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