Question

Cyclopentadienyl anion is

• A. benzenoid and aromatic
• B. non-benzenoid and aromatic
• C. non-benzenoid and non-aromatic
• D. non-benzenoid and anti-aromatic

Answer 1

Answer: (B)

non-benzenoid and aromatic

Answer 2

Cyclopentadienyl anion. It is cyclic,
planar with $(4 n+2) \pi e^{-}$. Therefore
aromatic but structure is not similar to benzene.