Q. Which compound amongst the following is not an aromatic compound?
A) [image:2022_Q115_opt_a.png]
B) [image:2022_Q115_opt_b.png]
C) [image:2022_Q115_opt_c.png]
D) [image:2022_Q115_opt_d.png]
Explanation
[Solution] Cycloheptatriene (option a) has an $sp^3$ carbon, so it is not fully conjugated and is non-aromatic. The cyclopentadienyl anion, tropylium cation and cyclopropenyl cation are aromatic. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.