Chemistry - Coordination Chemistry Question with Solution | TestHub

${\mathrm{Ma}}_2{\mathrm{b}}_2\mathrm{c}$ have 5 geometrical isomers of which one has optical acitivity. If two similar monodentate ligands are substituted by one bidentate ligand the number geometrical isomers are only 3 of which one is optically active. The total stereo isomers of $\mathrm{M}(\mathrm{AA}){\mathrm{b}}_2{\mathrm{c}}_2$ is 4 . So the decrease in number of isomers is 2 .