Question

Match the complex in List-I with its corresponding property(ies) given in List-II.

Answer 1

A) $\left[Ni\right(DMG{)}_2]$- $N{i}^0$ with $\left[Ar\right]3d^{8}4s^2$ is diamagnetic because DMG is a strong field ligand. DMG is also a bidentate and H-bonding is present in this pink coloured complex.
B) $N{a}_3\left[Fe\right(C_2{O}_4{)}_3]$- $F{e}^{3+}$ with $\left[Ar\right]3d^5$ is paramagnetic. $C_2{O}_4^{2-}$ is bidentate. It is conducting in aqueous solutions because it gives ions on dissociation.
C) $\left[Ni\right(en{)}_2]C{l}_2$- $N{i}^{2+}$ with $\left[Ar\right]3d^8$ is diamagnetic because $en$ is a strong field ligand. $en$ is a bidentate ligand. It is conducting in aqueous solutions because it gives ions on dissociation.
D) $Ni(CO{)}_4$- $N{i}^0$ with $\left[Ar\right]3d^{8}4s^2$ is diamagnetic because $CO$ is a strong field ligand.