Question

Which of the following compounds are antiaromatic

• A. (I) and (V)
• B. (II) and (V)
• C. (I) and (IV)
• D. (V) and (VI)

Answer 1

Answer: (D)

(V) and (VI)

Answer 2

have $\left(4n+2\right)\,\pi e^{-}$ and system should be planar where n is an integer. (V) and (VI) both have $4\,e^{-}$ and planar structure. Hence are Antiaromatic