Chemistry - Complete d-block Question with Solution | TestHub

${\mathrm{V}}_2{\mathrm{O}}_3$ is the most basic oxide among the given oxides.

In ${\mathrm{V}}_2{\mathrm{O}}_3$, Vanadium is in $+3$ oxidation state

${\mathrm{V}}^{3+}\Rightarrow \left[\mathrm{Ar}\right]3{\mathrm{d}}^{2}4{\mathrm{s}}^0$

So, $2$ unpaired electrons are there,

Its magnetic moment is equal to $\mathrm{\mu }=\sqrt{\mathrm{n}\left(\mathrm{n}+2\right)} \mathrm{BM}=\sqrt{2\left(2+2\right)} \mathrm{BM}$

$=2.83 \mathrm{BM} \simeq 3 BM$

($\mathrm{n}=$ number of unpaired electrons)