question_answer

Which of the following is an aromatic compound?

A)  

B)  

C)  

D)  

Correct Answer: A

Solution :

 The main condition for a compound to be aromatic is presence of\[(4n+2)n\]electrons. [a] \[=2\pi {{e}^{-}}\] [b] \[=4\pi {{e}^{-}}\] [c] \[=4\pi {{e}^{-}}\] [d] \[=4\pi {{e}^{-}}\] \[\therefore \]due to the presence of \[(4n+2)\pi {{e}^{-}}[4\times 0+2=2\pi {{e}^{-}}],\]is aromatic.