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Straight Chain Hydrocarbons

Examine the g...

Question

Examine the given structures and select which of them are aromatic?

A

I and II

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B

I and III

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C

II and III

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D

III and IV

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Solution

The correct option is B I and III
In the given structures, structure I and III both follow Huckel's rules and they are planar i.e. they fulfill all the conditions of aromaticity hence they are aromatic. Structure II is non planar tub shaped and structure IV is anti aromatic.

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