Which of the following coordination compounds is incapable of showing geometrical isomerism?
Answer & explanation
Correct answer: option 4
Geometrical isomerism is common in square planar and octahedral complexes.
Square planar complexes with general formula [MA2X2]±n, [MA2XY]±n, [MABX2]±n, [MABXY]±n, [M(AB)2]±n show isomerism
Octahedral complexes with general formula [MA4X2], [MA4XY], [M(AA)2X2] shows geometrical isomerism.