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- Home
- Engineering
- Structure of Benzene
- #Joint Entrance Examination Main
- #Engineering
- #Chemistry
- #Some Basic Principles of Organic Chemistry
Which one of the following correctly explains why all C–C bond lengths in benzene are equal?
A) Benzene is alicyclic and non-planar
B) Benzene contains three single and three double bonds
C) Benzene undergoes rapid oscillation between two Kekule forms
D) π-electrons in benzene are delocalized over the entire ring
Answers (1)
X-ray diffraction shows all six C–C bonds equal (≈1.39 Å). This is due to delocalization of π-electrons forming a resonance hybrid, not because of alternation or oscillation.
Hence, the correct answer is option (d).
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