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Question

Arrange the following in the increasing order of basicity.


A
Pyrrole
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B
Pyridine
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C
Aniline
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D
Benzylamine
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Solution

The correct option is
Pyrrole is least basic because lone pair is involved in aromaticity. The lone pair of electrons in aniline is involved in resonance. N in pyridine is sp2 hybridized whereas for benzylamine it is sp3 hybridized. 
So, the order for basicity follows as:
Pyrrole<aniline<pyridine<benzylamine

Chemistry

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