If mercury is used as cathode in the electrolysis of NaCl solution, the ions discharged at cathode are
If mercury is used as cathode in the electrolysis of NaCl solution, the ions discharged at cathode are
A. `H^(+)`
B. `Na^(+)`
C. `OH^(-)`
D. `Cl^(-)`
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Correct Answer - B
In presence of Hg electrode preferential discharge of `Na^(+)` (in comparison to `H^(+)`) occurs .
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