JEE Main Chemistry question

Which one of the following has the most nucleophilic nitrogen?

(A)PyridineCorrect
(B)A sulfur heterocycle (not nitrogen-based)
(C)Acetanilide (C₆H₅NHCOCH₃)
(D)Aniline

Answer: (A)

Solution

Pyridine's nitrogen lone pair occupies an sp² orbital in the ring plane, entirely separate from the 6π aromatic system, leaving it fully available for donation. In aniline, the nitrogen

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Question ID VK-139278