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Which of the following benzenoid aromati...

Which of the following benzenoid aromatic hydrocarbons consists of isolated benzene rings?

A

(1) Naphthalene

B

(2) Anthracene

C

(3) Phenanthrene

D

(4) Biphenyl

Text Solution

Verified by Experts

The correct Answer is:
D
All are polynuclear hydrocarbons. In this first three compounds, the benzene rings are fused together in the ortho positions. In biphenyl, two benzene rings are isolated
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