Chemistry - CHEMICAL BONDING Question with Solution | TestHub

${\mathrm{Fe}}^{3+}\left(d^5\right)$ has 5 unpaired electrons therefore magneticmoment $=\sqrt{n(n+2)}=\sqrt{5(5+2)}=5.91$ which is maximum among given options. As ${\mathrm{Sc}}^{3+},{\mathrm{Ti}}^{3+},{\mathrm{Cr}}^{3+}$ and ${\mathrm{V}}^{3+}$ contain $0,1,3$, and 2 number of unpaired electrons respectively.