During electrolysis of \( \mathrm{NaCl}(\mathrm{aq}) \), using \( \mathrm{Hg} \) cathode, \( \ma...

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During electrolysis of \( \mathrm{NaCl}(\mathrm{aq}) \), using \( \mathrm{Hg} \) cathode, \( \mathrm{Na} \) is
formed at cathode because
(a) SRP of Na is high.
(b) \( \mathrm{SOP} \) of \( \mathrm{Na} \) is high.
(c) Hydrogen tends to form \( \mathrm{HCl} \).
(d) Overvoltage for \( \mathrm{H}_{2} \) liberation is high with \( \mathrm{Hg} \) electrode.
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