Prove the following

Question:

At $298 \mathrm{~K}$, the standard reduction potentials are $1.51 \mathrm{~V}$ for $\mathrm{MnO}_{4}^{-} \mid \mathrm{Mn}^{2+}, 1.36 \mathrm{~V}$ for $\operatorname{oxidize}\left(\frac{\mathrm{RT}}{\mathrm{F}}=0.059 \mathrm{~V}\right):-$

  1. $\mathrm{Cl}^{-}$and $\mathrm{Br}^{-}$

  2. $\mathrm{Cl}^{-}, \mathrm{Br}^{-}$and $\mathrm{I}^{-}$

  3. $\mathrm{Br}^{-}$and $\mathrm{I}^{-}$

  4. I' $^{-}$only


Correct Option:

Solution:

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