The complex ion $\left[\operatorname{Pt}\left(\mathrm{NO}_2\right)(\mathrm{Py})\left(\mathrm{NH}_3\right)\left(\mathrm{NH}_2 \mathrm{OH}\right)\right]^{+}$ will give
2 isomers (Geometrical)
3 isomers (Geometrical)
6 isomers (Geometrical)
4 isomers (Geometrical)
Solution
Complexes of the type $\mathrm{M}_{A B C D}$ may exist in three isomeric form. Similarily $\left.\left(\mathrm{Pt}\left(\mathrm{NO}_2\right)(\mathrm{Py})\left(\mathrm{NH}_3\right)\left(\mathrm{NH}_2 \mathrm{OH}\right)\right]^{+}\right)$may exist in three isomeric form.