🔬 MCAT Exam Prep

Which compound is aromatic according to Huckel rule?

A Cyclooctatetraene (8 pi electrons)
B Benzene (6 pi electrons)
C Cyclobutadiene (4 pi electrons)
D Ethylene (2 pi electrons)

✓ Correct Answer: Option B

Huckel rule: 4n+2 pi electrons in a planar, cyclic, fully conjugated system. Benzene: 6 = 4(1)+2 ✓ aromatic.

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