Question Detail

CHM 102 Alkenes: Structure, Bonding, and Geometrical Isomerism Objective Question

Question

Which of the following dienes is the most stable?
Options
A 1,2-Butadiene (cumulated)
B 1,3-Butadiene (conjugated)
Correct Answer
C 1,4-Pentadiene (isolated)
D All are equally stable
Correct Answer

Option B is the correct answer.

Detailed Explanation

Conjugated dienes (1,3-butadiene) are more stable than isolated or cumulated dienes due to delocalization of π electrons.

Hint

Alternating single and double bonds allow resonance.

Question Info