question_answer

Which of the following compounds will exhibit cis-trans (geometrical) isomerism ?

A) 2-butene            

B) Butanol

C)        2-butyne            

D)        2-butenol

Correct Answer: A

Solution :

Key Idea Compounds which have at least one double bond (C = C) and the groups attached with double bonded carbon atoms are different, exhibit geometrical isomerism. \[{{H}_{2}}O,\]no geometrical isomers \[NO_{2}^{-}\]no geometrical isomers \[NH_{2}^{-}\]\[NH_{2}^{-}\]no geometrical isomers.