Chemistry - Coordination Chemistry Question with Solution | TestHub

The complex is $\left[\mathrm{CoBr}(\mathrm{ONO})(\mathrm{en}{)}_2\right]\mathrm{Cl}\cdot {\mathrm{H}}_2\mathrm{O}$.

The types of isomerism it can show are:

1. Linkage isomerism (ONO vs. NO₂)

2. Ionization isomerism (Br⁻ vs. Cl⁻)

3. Geometrical isomerism (cis/trans for $\mathrm{CoBr}(\mathrm{ONO})(\mathrm{en}{)}_2^{+}$)

4. Hydrate isomerism (H₂O inside/outside coordination sphere)

5. Optical isomerism (due to cis-geometrical isomer)

6. Stereoisomerism (encompasses geometrical and optical)

Therefore, it shows 6 types of isomerism.