| a. | \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right] \mathrm{Cl}_3 \) | b. | \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5 \mathrm{Cl}\right] \mathrm{Cl} \) |
| c. | \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_3 \mathrm{Cl}_3\right] \) | d. | \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}_2\right]\) |
| 1. | a and b | 2. | a,b, and c |
| 3. | c and d | 4. | b, c, and d |
| Statement I: | \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}\) is a homoleptic complex, whereas \([Co(NH_3)_4 Cl_2]^+\) is a heteroleptic complex. |
| Statement II: | Complex \([Co(NH_3)_6]^{3+}\) has only one kind of ligand but \([Co(NH_3)_4 Cl_2]^+\) has more than one kind of ligands. |