Which of the following species could be expected to exhibit aromatic character? Select the correct answer from the following

Question

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

Tardigrade Admin · Accepted Answer

Tropylium cation is planar and have 6π - electron according to Huckel rule, hence it is aromatic. Cyclopentadienyl anion is planar and have 6π - electron, hence it is also aromatic compound.

Q. Which of the following species could be expected to exhibit aromatic character?
Select the correct answer from the following

I and IV

II and IV

I and III

II and III

Tropylium cation is planar and have $6 π -$ electron according to Huckel rule, hence it is aromatic.
Cyclopentadienyl anion is planar and have $6 π -$ electron, hence it is also aromatic compound.

Q. Which of the following species could be expected to exhibit aromatic character? Select the correct answer from the following