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(C) The Valence Bond Theory $(VBT)$ explains the bonding in coordination complexes by considering the hybridization of metal orbitals.
To determine t

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magnetic moment

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(C) The Valence Bond Theory $(VBT)$ explains the bonding in coordination complexes by considering the hybridization of metal orbitals.
To determine the correct electronic configuration and the number of unpaired electrons in a complex,the measurement of the $magnetic \ moment$ is essential.
The $magnetic \ moment$ $(\mu)$ is calculated using the spin-only formula $\mu = \sqrt{n(n+2)} \ BM$,where $n$ is the number of unpaired electrons.
By comparing the experimental $magnetic \ moment$ with the theoretical values,one can confirm the presence of high-spin or low-spin complexes and the hybridization state of the central metal ion.

For the correct assignment of electronic configuration of a complex,the valence bond theory often requires the measurement of

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