Question

Consider the following statements

$S_1$ : Generally square planar complexes show geometrical isomerism but do not exhibit optical isomerism because they do not possess plane of symmetry

$S_2:{\Delta }_t=\frac{4}{9}{\Delta }_o$

$S_3$ : In octahedral complexes each electron entering the $t_{2g}$ orbtials stabilizes the complex ion by $0.4{\Delta }_o$ and each electron entering the $e_g$ orbital destabilizes the complex by an amount of $0.6{\Delta }_o$

• A. $S_1$ and $S_3$ are correct
• B. $S_2$ and $S_3$ are correct
• C. $S_1$ is incorrect.
• D. $S_2$ and $S_3$ are incorrect.

Answer 1

Answer: (B), (C)

The correct options are
B

$S_2$ and $S_3$ are correct

C

$S_1$ is incorrect.

$S_1$ : Square planar complexes with symmetrical ligands like (en) do not show geometrical isomerism and they have plane of symmetry, so optically inactive

$S_2$ and $S_3$ are correct statements.