Consider the following amines along with their p Kb values Amines pKb Methanamine (I) 3.38 N-methylmethanamine (II) 3.27 Benzenamine (III) 9.38 Phenylmethanamine (IV) 4.70

Question

Consider the following amines along with their p Kb values Amines pKb Methanamine (I) 3.38 N-methylmethanamine (II) 3.27 Benzenamine (III) 9.38 Phenylmethanamine (IV) 4.70 (A) Benzenamine (B) Phenylmethanamine (C) Methanamine (D) N-methyl methanamine

Tardigrade Admin · Accepted Answer

Larger the value of Kb or smaller the value of p Kb, stronger is the base. Hence, N-methyl methanamine is the strongest base among the give.

Q. Consider the following amines along with their $p K_{b}$ values

Amines $p K_{b}$

Methanamine (I) $3.38$

N-methylmethanamine (II) $3.27$

Benzenamine (III) $9.38$

Phenylmethanamine (IV) $4.70$

Benzenamine

Phenylmethanamine

Methanamine

$N$ -methyl methanamine

Larger the value of $K_{b}$ or smaller the value of $p K_{b}$ , stronger is the base. Hence, $N$ -methyl methanamine is the strongest base among the give.

Amines	$p K_{b}$
Methanamine (I)	$3.38$
N-methylmethanamine (II)	$3.27$
Benzenamine (III)	$9.38$
Phenylmethanamine (IV)	$4.70$

Q. Consider the following amines along with their pKb​ values Amines pKb​ Methanamine (I) 3.38 N-methylmethanamine (II) 3.27 Benzenamine (III) 9.38 Phenylmethanamine (IV) 4.70