Question

Given below are two statements.
Statement I: Iron (III) catalyst, acidified $K_{2}C{r}_2{O}_7$ and neutral $KMn{O}_4$ have the ability to oxidise $I^{–}$ to $I^2$ independently.
Statement II: Manganate ion is paramagnetic in nature and involves $p\pi -p\pi$ bonding.
In the light of the above statements, choose the correct answer from the options given below.

Answer 1

Manganate ion $Mn{O}_4^{2-}$ has tetrahedral structure and it has only $d\pi -p\pi \pi -$ bonds.

$F{e}^{3+}+I^{–}\to F{e}^{2+}+I_2$

$Mn{O}_4^{–}+I^{–}\to Mn{O}_2+I{O}_3^{-}$

$C{r}_2{O}_7^2–+I^{–}\to C{r}^{3+}+I_2$

$F{e}^{3+}$ is not used as a catalyst in the conversion of $I^{-}$ to $I_2$.
Also $KMn{O}_4$ in neutral medium oxidises $I^{-}$ to $I{O}_3^{-}$.
Hence, both the statements are false.