Q.

Which of the following is not an aromatic compound?

see full answer

Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!
An Intiative by Sri Chaitanya

a

Question Image

b

Question Image

c

Question Image

d

Question Image

answer is A.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

  • Aromatic compounds are planar structure, cyclic, complete conjugated system (electron delocalisation) and follows Huckel rule (4n+2) n=0,1,2,3... 
  • In compounds if there is odd no. of pibonds then it is aromatic. 
  • Anti-aromatic compounds have planar structure, cyclic, conjugation, does not follow huckel rule. It follows (4n) rule. 
  • Cyclopropenyl cation follow (4n+2) rule: aromatic.
  • Pyrrole delocalised electron pair of nitrogen follow huckel rule (4n+2): aromatic.
  • Cycloheptatrienyl cation follow (4n+2) rule: aromatic.
  • Cycloheptatrienyl anion follow (4n) rule: anti-aromatic. 
Watch 3-min video & get full concept clarity
score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

whats app icon