Aromaticity - Practice Questions & MCQ

Aromaticity is defined as "An aromatic compound having a cyclic planar structure with (4n+2) electrons and have high resonance energy and stability due to delocalization of  electrons." Any compound is aromatic if the following conditions are fulfilled:

• It has complete delocalization of  electrons.
• Has a high resonance energy.
• Has a conjugate system.
• Has number of  electrons according to 4n +2 or Huckel's rule that is, 2,6,10,14,18. Here, n = 0,1,2 ....
• If number of  electrons 4 "n' i.e., 4, 8, 12, 16, it will be anti-aromatic.
• If any of these conditions is not obeyed it will be non-aromatic.

Some example of aromatic compound include