Q. Among the following, the compound that is both paramagnetic and coloured is
A) $\left( NH_{4} \right)_{2}(TiCl_{6})$
B) $K_{2}Cr_{2}O_{7}$
C) $K_{3}\lbrack Cu(CN)_{4}\rbrack$
D) $VOSO_{4}$
Explanation
(d)
$V^{4 +} \rightarrow 3d^{1},\ 4s^{0}$
One unpaired electron, therefore, it is paramagnetic and coloured compound
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.