Question

Hybridisation and lone pair orbital of nitrogen in heterocyclic compound

Answer 1

Answer:

⏩⏩When the nitrogen atom of an aromatic heterocycle has single bonds only, then the nitrogen is still sp2 hybridized, but the lone pair occupies the unhybridized p orbital to create aromaticity. This lone pair is part of the conjugated pi electron system and is not available to react as a weak base.⏪⏪