Organic Chemistry Some Basic Principles And Techniques Ques 9

9. Huckel’s rule states that a monocyclic conjugated compound will be aromatic if it contains

[1996]

(a) $(4 n+2 \pi)$ electrons

(b) $(4 \pi+2 n)$ electrons

(c) $4 \pi$ electrons

(d) $(4 n+2) \pi$ electrons

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Answer:

Correct Answer: 9.(d)

Solution:

  1. (d) Huckel’s rule states that for aromaticity there must be $(4 n+2) \pi$ electrons present in a compound, where $n$ is an integer.