Question

Which of the following will not show geometrical isomerism?

• A. $\left[C o \left(o x\right)_{3}\right]^{3 -}$
• B. $\left[C o \left(e n\right)_{2} C l_{2}\right]Cl$
• C. $\left[C r \left(N H_{3}\right)_{4} C l_{2}\right]Cl$
• D. Both $\left[C o \left(e n\right)_{2} C l_{2}\right]Cl$ and $\left[C r \left(N H_{3}\right)_{4} C l_{2}\right]Cl$

Answer 1

Answer: (A)

$\left[C o \left(o x\right)_{3}\right]^{3 - \, }$ does not show geometrical isomerism.

As all three symmetrical bidentate ligands bonded to central $Co^{3+}$ cation.