Resonance Energy
Easychemistry
Resonance stabilization is highest in:
Select the correct option:
Solution
Incorrect! Answer:
Benzene
- Resonance Stabilization: The lowering of energy of a molecule due to delocalization of π electrons.
- Aromaticity: Molecules that are cyclic, planar, and have (4n+2) π electrons (Hückel's Rule) exhibit extraordinary stability.
- Comparison:
- Benzene: Aromatic. All 6 π electrons are perfectly delocalized over the ring. High resonance energy (≈150 kJ/mol).
- Butadiene: Conjugated, but open-chain. Lower stabilization.
- Ethene: Isolated double bond. Zero resonance stabilization.
- Cyclohexane: Saturated alkane. No π system at all.
🔒 Solution Hidden from View
Submit your answer to unlock the detailed step-by-step solution.
About This Question
- Subject
- chemistry
- Chapter
- basic organic principles
- Topic
- resonance energy
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
Benzene
- Resonance Stabilization: The lowering of energy of a molecule due to delocalization of π electrons.
- Aromaticity: Molecules that are cyclic, planar, and have (4n+2) π electrons (Hückel's Rule) exhibit extraordinary stability.
- Comparison:
- Benzene: Aromatic. All 6 π electrons are perfectly delocalized over the ring. High resonance energy (≈150 kJ/mol).
- Butadiene: Conjugated, but open-chain. Lower stabilization.
- Ethene: Isolated double bond. Zero resonance stabilization.
- Cyclohexane: Saturated alkane. No π system at all.
This easy difficulty chemistry question is from the chapter basic organic principles, covering the topic of resonance energy. It appeared in the 2025 exam.
Looking for more practice? Explore all chemistry questions or browse basic organic principles questions on RankGuru.