Nitrogen Containing Compounds Question 8
Question: The order of basic strength among the following amines in benzene solution is [AIIMS 1991; RPMT 2002]
Options:
A) $ CH_3NH_2>{{(CH_3)}_3}N>{{(CH_3)}_2}NH $
B) $ {{(CH_3)}_2}NH>CH_3NH_2>{{(CH_3)}_3}N $
C) $ CH_3NH_2>{{(CH_3)}_2}NH>{{(CH_3)}_3}N $
D) $ {{(CH_3)}_3}N>CH_3NH_2>{{(CH_3)}_2}NH $
Show Answer
Answer:
Correct Answer: B
Solution:
$ \underset{K_{b}=}{\mathop{{}}},\underset{5.4\times {{10}^{-4}}}{\mathop{{{(CH_3)}_2}NH}},>\underset{4.5\times {{10}^{-4}}}{\mathop{CH_3NH_2}},>\underset{0.6\times {{10}^{-4}}}{\mathop{{{(CH_3)}_3}N}}, $
BETA
