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Sodium cannot be obtained by the electro...

Sodium cannot be obtained by the electrolysis of aqueous solution of `NaCl` using `Pt` electrodes.

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T
Correction `:` in question sodium cannot be obtained . In aqueous solution, it is `H_(2)O` which is reduced.
`2H_(2)O+2e^(-) rarr 2H_(2)+2overset(c-)(O)H`
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