$A$ solution contains $Fe^{2+}$,$Fe^{3+}$ and $I^{-}$ ions. This solution was treated with iodine at $35^{\circ}C$. $E^{\circ}$ for $Fe^{3+}/Fe^{2+}$ is $+0.77 \ V$ and $E^{\circ}$ for $I_2/2I^{-}$ is $+0.536 \ V$. The favourable redox reaction is
- A$I_2$ will be reduced to $I^{-}$
- Bthere will be no redox reaction
- C$I^{-}$ will be oxidised to $I_2$
- D$Fe^{2+}$ will be oxidised to $Fe^{3+}$
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