Question

Which of the following are aromatic?

• A.
• B.
• C.
• D.

Answer 1

Answer: (C), (D)

The correct options are
C

D

Let's look for cyclicity first.

This eliminates

Now looking for conjugation.

This eliminates

Now, we need to check for Huckel's rule.



Number of pi electrons = 6 = 4(1) + 2
This follows Huckel's rule.



Number of pi electrons = 6 = 4(1) + 2
This follows Huckel's rule.