Consider n as the number of lone pairs of ele | vedclass

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(B) The structure of $ClF_3$ is $T$-shaped with two lone pairs occupying the equatorial positions to minimize repulsion.Thus,$n = 2$.We need to identi

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$A, D$ and $E$ only

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(B) The structure of $ClF_3$ is $T$-shaped with two lone pairs occupying the equatorial positions to minimize repulsion.Thus,$n = 2$.We need to identify ions with $2$ unpaired electrons:$(A) V^{3+}: [Ar] 3d^2$ (Unpaired electrons = $2$)$(B) Ti^{3+}: [Ar] 3d^1$ (Unpaired electrons = $1$)$(C) Cu^{2+}: [Ar] 3d^9$ (Unpaired electrons = $1$)$(D) Ni^{2+}: [Ar] 3d^8$ (Unpaired electrons = $2$)$(E) Ti^{2+}: [Ar] 3d^2$ (Unpaired electrons = $2$)Therefore,ions with $n = 2$ unpaired electrons are $A, D,$ and $E$.

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