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Which of the following is a benzenoid ar...

Which of the following is a benzenoid aromatic compound?

A

(1) Azulene

B

(2) Tropone

C

(3) Tropolone

D

(4) Phenanathrene

Text Solution

Verified by Experts

The correct Answer is:
D
Benzenoid aromatic compound contain one or more (fussed or isolated) benzene rigns. Phenanthrene `(C_(14)H_(10))`, isomeric with anthracene, is an example of an an angular polynuclear hydrocarbon:

Other compound are non-benzenoid aromatics as they do not contain a benzene ring but instead contain highly unsaturated rings and possess aromatic properties.
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