Question

Arrange the following amines in the decreasing order of their basicity

• A. 1 $>$ 3 $>$ 2
• B. 1 $>$ 2 $>$ 3
• C. 3 $>$ 2 $>$ 1
• D. 2 $>$ 1 $>$ 3

Answer 1

The correct option is A 1 $>$ 3 $>$ 2

Aromatic amines are less basic than aliphatic amines. thus 2 is least basic. Comparing the two aliphatic amines now, 1 is more baisc than 3 because in 3, there is $Ph$ group in the $C$ chain which decreases electron density by -I effect.
Hence, (a) is the correct option.