Hydrocarbons Question 169
Question: Pyridine is less basic than triethylamine because [AIIMS 2005]
Options:
A) Pyridine has aromatic character
B) Nitrogen in pyridine is $ sp^{2} $ hybridized
C) Pyridine is a cyclic system
D) In pyridine, lone pair of nitrogen is delocalized
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Answer:
Correct Answer: D
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 nitrogen in pyridine is delocalised.
BETA
