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The products formed when an aqueous solu...

The products formed when an aqueous solution of `NaBr` is electrolysed in a cell having inert electrodes are `:`

A

Na and `Br_(2)`

B

Na and `O_(2)`

C

`H_(2),Br_(2)andNaOH`

D

`H_(2)andO_(2)`

Text Solution

Verified by Experts

The correct Answer is:
c
`NaBr hArr NA^(+)+Br^(-)`
`H_(2) O hArr H^(+) +OH^(-)`
At cathode `2H^(+)+2e^(-) to H_(2)`
At node ` 2Br^(-)+OH^(-) to NaOH`
As discharge potential of `H^(+)` ions is lower than that of `Na^(+)` ions of `OH^(-)` ions, `H_(2)` is liberated at cathode and `Br_(2)` liberated at anode.
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