1.

In the electrolysis of aqueous sodium chloride solution which of the half cell reaction will occur at anode?

Answer»

`Na^(+)(aq)+e^(-)toNa(s),E_(Cell)^(Theta)=-2.71V`
`2H_(2)O(l)toO_(2)(G)+4H^(+)(aq)+4e^(-),E_(Cell)^(Theta)=1.23V`
`H^(+)(aq)+e^(-)to(1)/(2)H_(2)(g),E_(Cell)^(Theta)=0.00V`
`Cl^(-)(aq)to(1)/(2)Cl_(2)(g)+e^(-),E_(Cell)^(Theta)=1.36V`

SOLUTION :oxidatio occurs at anode. As (b) has HIGHER oxidation potential than (a), (b) occurs.


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