J & K CET Medical
J & K - CET Medical Solved Paper-2003
question_answer
Which of the following species could be expected to exhibit aromatic character? Select the correct answer from the following:
A) I and IV
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. Cyclopentadienyl anion is planar and have\[6\pi -\]electron, hence, it is also aromatic compound.