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The decreasing order of basic characters...

The decreasing order of basic characters of the three amines and ammonia is

A

`NH_(3) gt CH_(3)NH_(2) gt C_(2)H_(5)NH_(2) gt C_(6)H_(5)NH_(2)`

B

`C_(2)H_(5)NH_(2) gt CH_(3)NH_(2) gt NH_(3) gt C_(6)H_(5)NH_(2)`

C

`C_(6)H_(5)NH_(2) gt C_(2)H_(5)NH_(2) gt CH_(3)NH_(2) gt NH_(3)`

D

`CH_(3)NH_(2) gt C_(2)H_(5)NH_(2) gt C_(6)H_(5)NH_(2) gt NH_(3)`

Text Solution

Verified by Experts

The correct Answer is:
B
Due to +I effect of `-C_(2)H_(5) and -CH_(3)`, the basic character will be more than that of `NH_(3)`. In aniline the lone pair of electrons are engaged in resonance so are less available
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