1.

Pyridine is less basic than triethylamine because

Answer»

Pyridine has aromatic character
Nitrogen in pyridine is `sp^2` hybridized
Pyridine is a CYCLIC system
In pyridine, lone pair of nitrogen is delocalized

Solution :BASICITY of amines is due to availability of an UNSHARED pair (lone pair) of electrons on nitrogen . This lone pair of electrons is AVAILABLE for the formation of a new bond with a proton or Lewis acid .
Pyridine is less basic than triethylamine because lone pair of ELECTRON in nitrogen in pyridine is delocalised.


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