Q.
The order of basicity among the following compounds is

NTA AbhyasNTA Abhyas 2022
Solution:

Solution:
The conjugate acid is stabilized by resonance with two different $-NH_{2}$ group.
The conjugate acid is stabilized by resonance with one $-NH_{2}$ group and by hyper conjugation of $-CH_{3}$ group.
The conjugate acid is stabilized by resonance with only one $NH_{2}$ group.