# Consider the hydrates ions of

Question:

Consider the hydrates ions of $\mathrm{Ti}^{2+}, \mathrm{V}^{2+}, \mathrm{Ti}^{3+}$ and $\mathrm{Sc}^{3+}$. The correct order of their spin-only magnetic moments is :

1. $\mathrm{Sc}^{3+}<\mathrm{Ti}^{3+}<\mathrm{Ti}^{2+}<\mathrm{V}^{2+}$

2. $\mathrm{Ti}^{3+}<\mathrm{Ti}^{2+}<\mathrm{Sc}^{3+}<\mathrm{V}^{2+}$

3. $\mathrm{Sc}^{3+}<\mathrm{Ti}^{3+}<\mathrm{V}^{2+}<\mathrm{Ti}^{2+}$

4. $\mathrm{V}^{2+}<\mathrm{Ti}^{2+}<\mathrm{Ti}^{3+}<\mathrm{Sc}^{3+}$

Correct Option: 1

Solution: