The value of the ‘spin only’ magnetic moment for one of the following configurations is 2.84 BM. The correct…

1. $\mathrm{d}^4$ (in strong ligand filed)
2. $\mathrm{d}^4$ (in weak ligand filed)
3. $\mathrm{d}^3$ (in weak as well as in strong fields)
4. $\mathrm{d}^5$ (in strong ligand filed)

Solution

$\mathrm{d}^4$ in strong field, so unpaired electrons = 2.

Asked in: JEE Main 2005

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