MCQ
Identify cationic complex from the following.
- A$\mathrm{K}_4\left[\mathrm{Fe}(\mathrm{CN})_6\right]$
- ✓${\left[\mathrm{Ni}\left(\mathrm{NH}_3\right)_6\right] \mathrm{Cl}_2}$
- C$\mathrm{K}_2\left[\mathrm{Hgl}_4\right]$
- D$\left[\mathrm{Ni}(\mathrm{CO})_4\right]$
