Chemistry - Coordination Chemistry Question with Solution | TestHub

Complex $\mathrm{X}$ is ${\left[\mathrm{Fe}(\mathrm{en}{)}_3\mathrm{right}\right]}^{2+};$ as 'en' is a strong field ligand pairing of electrons will take place. ${\left[\mathrm{Fe}(\mathrm{en}{)}_3\right]}^{2+}$ : $d^{2}s{p}^3$ hybridisation Hence, hybridisation is $d^{2}s{p}^3$ and complex is diamagnetic. As it has 3 bidentate symmetrical 'en' ligands so it will not show geometrical isomerism.