Question

Which of the following meet the requirements of the Huckel rule?

• A. Naphthalene
• B. Cyclohexane
• C. 1,3,5,7-Cyclooctatetraene
• D. 1,3-Cyclobutadiene

Answer 1

The correct option is A Naphthalene

Huckle's rule: It states that if a cyclic, planar molecule has 4n+2 $\pi$ electrons, it is considered aromatic.

For Naphthalene $n=2$ and it has 10 $\pi$ electrons.

Option A is correct.