Pair of transition metal ions having the same number of unpaired electrons is :

1. $\mathrm{V}^{2+}, \mathrm{Co}^{2+}$
2. $\mathrm{Ti}^{i+}, \mathrm{Co}^{2+}$
3. $\mathrm{Fe}^{3+}, \mathrm{Cr}^{2+}$
4. $\mathrm{Ti}^{3+}, \mathrm{Mn}^{2+}$

Solution

So $\mathrm{V}^{2+} \& \mathrm{Co}^{2+}$ same number of unpaired electron.

Asked in: JEE Main 2025 (04 Apr Shift 1)

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