Which of the following species could be expected to exhibit aromatic character? Select the correct answer from the following
A) I and TV
B) II and IV
C) I and III
D) II and III
Correct Answer:
D
Solution :
Tropylium cation is planar and have \[6\pi -\]electron according to Huckel rule hence it is aromatic in nature. Cyclopentadienyl anion is planar and have \[6\pi -\]electron, hence it is also aromatic compound.