Which outcome occurs when electrolytic hydrogen production is performed using alternating current (AC)?

💡 Explanation

When AC is used, polarization reversal occurs because the electrodes alternate between anode and cathode resulting in continuous formation and dissociation of hydroxide and hydronium ions hindering H2 evolution which decreases net hydrogen production efficiency. Therefore, reduced efficiency results, rather than ozone formation, accelerated corrosion or hydrogen storage enhancement—each require highly specific electrolyte and electrode chemistries.

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