The difference in the 'spin-only' magnetic moment values of \( \text{KMnO}_4 \) and the manganese product formed during titration of \( \text{KMnO}_4 \) against oxalic acid in acidic medium is ______ BM (nearest integer).
Correct Answer: 6
Solution and Explanation
Spin-only magnetic moment of Mn in KMnO$_4$:
\[\mu = 0\]
Spin-only magnetic moment of the manganese product formed during titration of KMnO$_4$ against oxalic acid in acidic medium:
\[\mu = 6 \, \text{BM}\]
Difference in magnetic moments:
\[6 - 0 = 6 \, \text{BM}\]
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