MCQ
The stabilisation of coordination compounds due to chelation is called the chelate effect. Which of the following is the most stable complex species?
- A$ {\left[\mathrm{Fe}(\mathrm{CO})_5\right]} $
- B$ {\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{3-}} $
- ✓$ {\left[\mathrm{Fe}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]^{3-}} $
- D$ {\left[\mathrm{Fe}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+}} $
