JEE Main Chemistry question

In pyridine (ring nitrogen at position 1, carbons numbered 2, 3, 4 around the ring), electrophilic aromatic substitution occurs preferentially

(A)At position 2
(B)At position 3Correct
(C)At position 4
(D)At positions 2 and 4

Answer: (B)

Solution

The electronegative ring nitrogen withdraws electron density most from the 2- and 4-positions (the resonance structures placing positive charge adjacent to or on

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Question ID VK-140320