Q. Cyclopentadienyl anion is
A) Aromatic
B) Non-aromatic
C) Non-planar
D) Aliphatic
Explanation
(a)
[image:13_image202.emf]
(Cyclopenta dienyl anion)
According to Huckel’s rule
Total number of $\pi$-electrons inside the ring
$(4n + 2)\pi$ electrons.
$= (4 \times 1 + 2) = 6\pi$ electrons
So, it is aromatic.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.