The strongest base among the following is

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(C) The basicity of an amine depends on the availability of the lone pair of electrons on the nitrogen atom.In $A$ (Pyridine),$B$ (Pyrrole),and $D$ (A

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Piperidine

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(C) The basicity of an amine depends on the availability of the lone pair of electrons on the nitrogen atom.In $A$ (Pyridine),$B$ (Pyrrole),and $D$ (Aniline),the lone pair of electrons on the nitrogen atom is involved in resonance or is part of the aromatic system,making it less available for protonation.In $C$ (Piperidine),the nitrogen atom is $sp^3$ hybridized and the lone pair is not involved in any resonance or aromatic system,making it highly available for protonation.Therefore,Piperidine is the strongest base among the given options.

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