Q. Correct gradation of basic charactor
A) $NH_{3}CH_{3}NH_{2} > NF_{3}$
B) $CH_{3}NH_{2} > NH_{3} > NF_{3}$
C) $NF_{3} > CH_{3}NH_{2} > NH_{3}$
D) $CH_{3}NH_{2} > NF_{3} > NH_{3}$
Explanation
(b)
In gas phase tertiary amines are more basic than secondary amines which are more basic than ammonia
$- I\$group present on central atom decreases electron density, hence decreases basicity
$CH_{3}NH_{2} > NH_{3} > NF_{3}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.