MCQ
The complex cation which has two isomers is:
- A$\left[ Co \left( H _2 O \right)_6\right]^{3+}$
- B$\left[ Co \left( NH _3\right)_5 Cl \right]^{2+}$
- ✓$\left[ Co \left( NH _3\right)_5 NO _2\right]^{2+}$
- D$\left[ Co \left( NH _3\right)_5 Cl \right]^{+}$
