Question

Which of the following complexes is not excepted to exhibit isomerism -

• A. $\left[Pt\right(N{H}_3{)}_{2}C{l}_2]$
• B. $\left[Ni\right(N{H}_3{)}_{2}C{l}_2]$
• C. $\left[Ni\right(en{)}_3{]}^{2+}$
• D. $\left[Ni\right(N{H}_3{)}_4(H_{2}O{)}_2{]}^{+2}$

Answer 1

The correct option is B $\left[Ni\right(N{H}_3{)}_{2}C{l}_2]$

$\left[Ni\right(N{H}_3{)}_{2}C{l}_2]$ has tetrahedral geometry and thus, does not exhibit isomerism due to of symmetry elements.
Hence, $\left[Ni\right(N{H}_3{)}_{2}C{l}_2]$ is not expected to exhibit isomerism.
It neither shows geometrical isomerism does not show optical isomerism.