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)` and NaOHD. `H_(2)` and `O_(2)`

The products formed when an aqueous solution of `NaBr` is electrolysed

1.	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)` and NaOHD. `H_(2)` and `O_(2)`
Answer» Correct Answer - C `NaBr(aq)hArrNa^(+)(aq)+Br^(-)(aq)` `Na^(+)+e^(-)rarrNa` `2H_(2)O+ 2e^(-)rarrH_(2)=2OH^(-)` As R.P. of 2nd reactions is more `H_(2)` is produced at cathode `2Br^(-)rarrBr_(2)+2e^(-)` `2H_(2)OrarrO_(2)+4 H^(+)+4e^(-)` As O.P. of 1st reaction is more, `Br_(2)` is produced at anode `Na^(+)` from ionisation of NaBr and `OH^(-)` ions produced due to reduction of water at cathode combine to give NaOH.

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Based on the data given below, the correcy order of reducing power is: `Fe_((aq.))^(3+) + e rarr Fe_((aq.))^(2+), E^(@) = +0.77 V` `Al_((aq.))^(3+) + 3e rarr Al_((s)), E^(@) = -1.66 V` `Br_(2(aq.)) + 2e rarr 2Br_((aq.))^(-), E^(@) = +1.08 V`A. `Br^(-) lt Fe^(2+) lt Al`B. `Fe^(2+) lt Al lt Br^-`C. `Al lt Br^(-) lt Fe^(2+)`D. `Al lt Fe^(2+) lt Br^(-)`
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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)` and NaOHD. `H_(2)` and `O_(2)`

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