JEE MAIN - Chemistry (2022 - 29th June Morning Shift - No. 16)
An acidified manganate solution undergoes disproportionation reaction. The spin-only magnetic moment value of the product having manganese in higher oxidation state is _____________ B.M. (Nearest integer)
Answer
0
Explanation
$$
\begin{aligned}
& 3 \mathrm{MnO}_4^{2-}+4 \mathrm{H}^{+} \longrightarrow 2 \overset{+7}{\mathrm{MnO}_4^{-}}+\overset{+4}{\mathrm{MnO}_2}+2 \mathrm{H}_2 \mathrm{O} \\\\
& \overset{+7}{\mathrm{Mn}}=\text { no. of unpaired electrons is '0' } \\\\
& \mu=0 \text { B.M. }
\end{aligned}
$$
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