Arrange the following in increasing order of their basic strength? p-nitroaniline (1); m-nitroaniline (2); 2,6-trimethylaniline (3); 3-methylanline (4).

Question

Arrange the following in increasing order of their basic strength? p-nitroaniline (1); m-nitroaniline (2); 2,6-trimethylaniline (3); 3-methylanline (4). (A) 1, 3, 2, 4 (B) 2, 3, 4, 1 (C) 3, 1, 2, 4 (D) 1, 2, 4, 3

Tardigrade Admin · Accepted Answer

In case of substituted aniline, electron releasing groups like -OCH3, -CH3 increase basic strength whereas electron withdrawing groups like -NO2, -SO3H, -COOH, -X decrease it.

Q. Arrange the following in increasing order of their basic strength?
$p$ -nitroaniline $(1)$ ; m-nitroaniline $(2); 2, 6$ -trimethylaniline $(3); 3$ -methylanline $(4)$ .

$1, 3, 2, 4$

$2, 3, 4, 1$

$3, 1, 2, 4$

$1, 2, 4, 3$

In case of substituted aniline, electron releasing groups like $- OC H_{3}, - C H_{3}$ increase basic strength whereas electron withdrawing groups like $- N O_{2}, - S O_{3} H, - COO H, - X$ decrease it.

Q. Arrange the following in increasing order of their basic strength? p-nitroaniline (1); m-nitroaniline (2);2,6-trimethylaniline (3);3-methylanline (4).

1,3,2,4

2,3,4,1

3,1,2,4

1,2,4,3