Q. Which of the following has the maximum heat of hydrogenation?
A) [image:13_image2.emf]
B) [image:13_image3.emf]
C) [image:13_image4.emf]
D) [image:13_image5.emf]
Explanation
(c)
As the conjugation increases, heat of hydrogenation decreases. Thus, alkene (c) with two isolated double bonds has the highest heat of hydrogenation.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.