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The increasing order of basicity of the ...

The increasing order of basicity of the following compounds is-

A

`(b)lt(a)lt(d)lt(c)`

B

`(d)lt(b)lt(a)lt(c)`

C

`(a)lt(b)lt(c)lt(d)`

D

`(b)lt(a)lt(c)lt(d)`

Text Solution

Verified by Experts

The correct Answer is:
A
( c ) is an amidine. Its conjugate acid is resonance stabilised. Thus it is the most basic among them. (d) is a secondary amine whose basicity is lesser than ( c ) but greater than (a), as (a) is primary amine. (b) is least basic among them as it is imine, where N is `sp^(3)` hybridised.
Thus the correct order of increasing basicity is -
`(b) lt(a)lt(d)lt(c)`
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