Q41 · CSIR-NET Chemistry, June 2013

Paper: CSIR-NET June 2013 · Subject: Inorganic Chemistry · Chapter: Coordination Chemistry · Topic: Coordination Chemistry – General · Marks: 2 · Difficulty: Easy

The species with highest magnetic moment (spin only value) is
(a)$\mathrm{VCl}_{6}^{4-}$
(b)$\left(\eta^{5} \mathrm{C}_{5} \mathrm{H}_{5}\right)_{2} \mathrm{Cr}$
(c)$\left[\mathrm{Co}\left(\mathrm{NO}_{2}\right)_{6}\right]^{3-}$
(d)$[\mathrm{Ni}(\mathrm{EDTA})]^{2-}$
Answer
Answer: A ✓ checked by 4AB · confidence high
Explanation
[VCl₆]⁴⁻ (d³) has three unpaired electrons, the most among the options (a).

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