1.

When an aqueous solution of sodium chloride is electrolysed using platimun electrodes, the ion discharged at the electrodes are

Answer»

sodium and HYDROGEN
sodium and chloride
hydrogen and chloride
hydroxyl and chloride

Solution :`Nacl HARR Na^(+)+Cl^(-)`
`H_(2)O hArr UNDERSET(DARR^(E^(-)))(H^(+))+OH^(-)`
`underset(("At cathode"))((1)/(2)H_(2)) larr H, Cl^(-) rarr Cl rarr underset(("At anode"))((1)/(2))Cl_(2)+e^(-)`
Reduction potential of H is more than Na.


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