Question

Among $1-4$, the complexes that can show geometrical isomerism are
1. ${\left[Pt{\left(N{H}_3\right)}_{3}Cl\right]}^{+}$
2. ${\left[Pt\left(N{H}_3\right)C{l}_5\right]}^{-}$
3. $\left[Pt{\left(N{H}_3\right)}_{2}Cl(ONO)\right]$
4. ${\left[Pt{\left(N{H}_3\right)}_{4}ClBr\right]}^{2+}$

• A. 4 and 1
• B. 2 and 3
• C. 3 and 4
• D. 1 and 2

Answer 1

Answer: (C)

$\left[\text{Pt}{\left({\left(\text{NH}\right)}_{\text{3}}\right)}_{\text{2}}\text{Cl}\left(\text{ONO}\right)\right]\text{and}{\left(\left[\text{Pt}{\left({\left(\text{NH}\right)}_{\text{3}}\right)}_{\text{4}}\text{ClBr}\right]\right)}^{\text{2+}}$
$\left[{\text{MA}}_{\text{2}}\text{BC}\right]\Rightarrow \text{2}\text{.G}\text{.I}$
$\left[{\text{MA}}_{\text{4}}\text{BC}\right]\Rightarrow \text{2}\text{.G}\text{.I}$
Hence these two can show geometrical isomerism.