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

• A

  2 isomers (Geometrical)
• Correct answer
  B

  3 isomers (Geometrical)
• C

  6 isomers (Geometrical)
• D

  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.

Hence, the correct answer is option: 'B'.