For the octahedral complexes of Fe3+ in SCN− (thiocyanato-S) and in CN− ligand environments, the difference between the spin-only magnetic moments in Bohr magnetons (when approximated to the nearest integer) is[Atomic number of Fe = 26]
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answer is 4.
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Detailed Solution
Fe+3 with weak field ligand SCN− contains 5 unpaired e−∴ μ=5.9B.M. With strong field ligand Fe+3 complex contains 1 unpaired e−∴ μ=1.73 M Difference is≈ 4