Pyridine is less basic than triethylamine because

Question

Pyridine is less basic than triethylamine because (A) pyridine has aromatic character (B) nitrogen in pyridine is sp2 hybridised (C) pyridine is a cyclic system (D) in pyridine, lone pair of nitrogen is delocalised

Tardigrade Admin · Accepted Answer

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.

Q. Pyridine is less basic than triethylamine because

pyridine has aromatic character

nitrogen in pyridine is $s p^{2}$ hybridised

pyridine is a cyclic system

in pyridine, lone pair of nitrogen is delocalised

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.