Question

Pyridine is less basic than triethylamine because

• A. pyridine has aromatic character
• B. nitrogen in pyridine is $sp^2$ hybridised
• C. pyridine is a cyclic system
• D. in pyridine, lone pair of nitrogen is delocalised

Answer 1

Answer: (A)

pyridine has aromatic character

Answer 2

Both pyridine and triethyl amine are $t$-amines triethyl amine is highly basic (gaseous or non polar medium) due to $+I$ effect of $- C _{2} H _{5}$ which increase electron density on $N$ atom. Whereas in pyridine electron density on $N$ atom is less due to resonance.