Acidified potassium permanganate solution oxidises oxalic acid. The spin-only magnetic moment of the manganese product formed from the above reaction is B.M.
(Nearest Integer)

6.00

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6.0

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Solution

$K M n O_{4} (acidic medium) + H_{2} C_{2} O_{4} \to C O_{2} + M n^{2 +}$
$M n^{2 +}$ has $5$ unpaired electrons
$∴$ Spin only magnetic moment

$= \sqrt{n (n + 2)}$
$= \sqrt{5 (5 + 2)}$
$= \sqrt{5 \times 7}$
$= \sqrt{35}$
$= 5.92 B . M .$
$\approx 6 B . M . Nearest integer$

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