Identify the complex which exhibits optical isomerism.
- $\mathrm{Co}\left(\mathrm{NH}_3\right)_5\left(\mathrm{SO}_4\right) \mathrm{Br}$
- $\mathrm{Co}\left(\mathrm{NH}_3\right)_5 \mathrm{Cl}_3$
- $\mathrm{Co}(\mathrm{en})_3 \mathrm{Cl}_3$
- $\mathrm{Co}\left(\mathrm{NH}_3\right)_4\left(\mathrm{NO}_2\right) \mathrm{Cl}$
Solution
Asked in: AP EAMCET 2018 (24 Apr Shift 2)