question_answer

Which of the following compounds will show geometrical isomerism?

A)  Propene                            

B)  2-butene

C)  Propyne                             

D)  2-butyne

Correct Answer: B

Solution :

Presence of adeast one double bond and attachment of different groups at the double bonded carbon atoms, are two essential conditions for alkenes to exhibit geometrical isomerism. 2-butene satisfies both the conditions, thus it exists in cis and trans  form as