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The magnetic moment is measured in Bohr Magneton (BM). Spin only magnetic moment of Fe in [Fe(H 2 O) 6 ] 3+ and [Fe(CN) 6 ] 3– complexes respectively is :

1. 6.92 B.M. in both
2. 3.87 B.M. and 1.732 B.M
3. 5.92 B.M. and 1.732 B.M
4. 4.89 B.M. and 6.92 B.M.

Correct answer: 5.92 B.M. and 1.732 B.M

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