Question Detail
Question
In the resonance hybrid of 1,3-butadiene, what is the bond order between C2 and C3?
Correct Answer
Option C is the correct answer.
Detailed Explanation
In 1,3-butadiene, resonance delocalization gives the central C2-C3 bond partial double bond character (bond order >1), making it shorter than a typical single bond.
Hint
Resonance leads to bond equalization.