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Which of the following is an aromatic species?

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Which of the following is an aromatic species?

(d) All of the three
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Correct answer: (c)

Explanation:

An aromatic compound have cyclic clouds of delocalised (4n + 2) π electrons above and below the plane of the molecule. Among the given three compounds, only compound (c) satisfies these conditions.

Carbon bearing –NO (or –CH ) group is sp3 hybridised and does not have a p orbital with the result delocalisation of electrons over the complete ring is interrupted.

4π electrons and 2 non-bonding electrons (present in p orbital of N) form a cyclic cloud of 6 electrons
This post was modified 2 years ago by Riya08
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