Question

Column-I and Column-II contains four entries each. Entries of Column-I are to be matched with one or more than one entries of Column-II. Each entry of Column-I may have the matching with one or more than one entries of Column-II.

Answer 1

$\left[Cr\right(CN{)}_2(N{O}_2{)}_3{]}^{4-}$ is an inner orbital complex. It has dipole moment $\mu =2.83BM$.
$\left[Co\right(C_2{O}_4{)}_3{]}^{3-}$ is an inner orbital complex. It shows optical activity. It has dipole moment $\mu =0$.
$\left[Fe\right(EDTA){]}^{-}$ is an inner orbital complex. It shows optical activity.
$\left[Ni\right(en{)}_3\left]\right(N{O}_3{)}_2$ is an outer orbital complex. It has dipole moment $\mu =2.83BM$. It shows optical activity.