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← ScienceDuring electrolysis of water with high overpotential electrodes, which outcome is linked to hydrogen evolution?
A)Interface electron transfer is inhibited
B)Bubble nucleation surpasses diffusion limits✓
C)Increased electrode surface oxidation occurs
D)Bulk solution pH rises rapidly
💡 Explanation
Bubble nucleation dominates at high overpotentials because increased surface supersaturation favors bubble formation via the Volmer-Weber mechanism. Consequently, bubble nucleation exceeds diffusion limitations, therefore option B is correct, rather than electron tansfer limits at the interface.
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