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Consider the following metal complexes : Co NH 3 3 + CoCl NH 3 5 2 + Co ( CN ) 6 3 - Co NH 3 5 H 2 O 3 + The spin-only magnetic moment value of the complex that absorbs light with shortest wavelength is B.M. (Nearest integer)

Correct answer

0

Step-by-step solution

The complex that absorbs minimum wave length of light has maximum splitting Δ 0 ∝ 1 λ Δ 0 = Crystal   field   stabilization   energy Here, CN - being strong   field   ligand ,It will have cause CFSE So, Co ( CN ) 6 3 - will absorb minimum wavelength. The hybridization of Co in Co ( CN ) 6 3 - will be d 2 sp 3 As, the complex has no unpaired electrons, spin only magnetic moment will be zero and it is diamagnetic in nature.

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