1. Tardigrade
  2. Question
  3. Chemistry
  4. The disproportionation of MnO 42- in acidic medium resulted in the formation of two manganese compounds A and B. If the oxidation state of Mn in B is smaller than that of A, then the spin-only magnetic moment (μ) value of B in B M is

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. The disproportionation of $MnO _4^{2-}$ in acidic medium resulted in the formation of two manganese compounds $A$ and $B$. If the oxidation state of $Mn$ in $B$ is smaller than that of A, then the spin-only magnetic moment $(\mu)$ value of $B$ in $B M$ is ___

JEE MainJEE Main 2022The d-and f-Block Elements

Solution:

$MnO _4^{2-} \stackrel{ H ^{+}}{\longrightarrow} MnO _4^{-}+ MnO _2$
No. of unpaired $\overline{ e }=3$
$\therefore \mu=\sqrt{15}=3.877$
Nearest Integer $=4$