question_answer

Geometrical isomerism is shown by

A)  

B)  

C)   

D)  

Correct Answer: D

Solution :

                 Key Idea Conditions for geometrical isomerism The molecule must have a double bond. The two atoms or groups attached to the same carbon atom must be different.   It does not show geometrical isomerism because two chlorine atom attach to same carbon atom.   It does not show geometrical isomerism because two methyl group attach to same carbon atom.   It also does not show geometrical isomerism because two hydrogen atom attach to same carbon atom.    It shows geometrical isomerism because four different group/atom attached to the carbon atoms of a double bond.