27. When aqueous sodium chloride () is electrolyzed using inert Platinum electrodes, what are the primary products evolved at the cathode and anode, respectively?

Question

27. When aqueous sodium chloride ($NaCl$) is electrolyzed using inert Platinum electrodes, what are the primary products evolved at the cathode and anode, respectively?

Prashant Kotian · Accepted Answer

Correct answer: C. In aqueous NaCl, water is preferentially reduced over at the cathode due to a higher reduction potential, yielding . At the anode, although water oxidation to is thermodynamically favoured, the high kinetic overvoltage of evolution causes to be oxidized to instead.

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