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At 298 K, the standard reduction potenti...

At 298 K, the standard reduction potentials are 1.51 V for `MnO_(4)^(-), Mn^(2+),1.36V for Cl_(2)/CI^(-) , 1.07 V Br_(2)|. Br^(-)`, and 0.54 V for `l_(2)|l^(-)` At pH=3, permaganate is expected to oxidize (2.303RT/F -0.059 V)

A

`CI^(-)-, Br^(-)` and `I^(-)`

B

`CI^(-)` and `Br^(-)`

C

`Br^(-)` and `I^(-)`

D

`l^(-)` only

Text Solution

Verified by Experts

The correct Answer is:
D
The reduction potential of `MnO_(4)^(-) //Mn^(2+)` is more than that of `CL_(2)//CI^(-), Br_(2)//Br^(-)` and `l_(2)//l^(-)` so permanganate is expected to oxidize `Cl^(-), Br^(-)` and beacuse `E_(cell)^(@)gt0`.
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