Question

The spin-only magnetic moment value of the most basic oxide of vanadium among $V_2{O}_3,V_2{O}_{4}and{V}_2{O}_5$ is B.M. (Nearest integer)

• A. 3.00
• B. 3
• C. 3.0

Answer 1

Answer: (A), (B), (C)

The basic character of a metal oxide decreases with increase in oxidation number.
$\therefore$ $\text{The most basic oxide among}{V}_2{O}_3,V_2{O}_{4}and{V}_2{O}_5\text{is}{V}_2{O}_3$
$V_2{O}_3=V^{3+}\left(d^2\right)$
$\text{Magnetic moment =}=\sqrt{2(2+2)}=\sqrt{8}$
$=2.83\approx 3$