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)
Correct Answer: 6
Solution and Explanation
\(KMnO_4\text {(acidic-medium)} + H_2C_2O_4 → CO_2 + Mn^{2+}\)
\(Mn^{+2}\) has \(5\) unpaired electrons
∴ Spin only magnetic moment
\(= \sqrt {5(5+2)}\)
\(= \sqrt {5 \times 7}\)
\(= \sqrt {35}\)
\(≈ 5.92 \ B.M\)
\(≈ 6 \ B.M\)
So, the answer is \(6\).
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