18. Aromaticity
Huckel's Rule
Multiple Choice
Multiple Choice
Classify the following molecule as aromatic, antiaromatic, or nonaromatic.
![The figure illustrates the structure of an ion. A 4-carbon square ring is in a horizontal orientation with C 1 occupying the top right vertex. A double bond is present between C 3 and C 4. C 1 carries a positive charge.](https://media.pearsoncmg.com/ph/esm/ecs_mullins_organic1e/msa/content/practice-test/img/Ch23_Q06_QT.jpg)
A
There is not enough information to determine the aromaticity.
B
Aromatic
C
Nonaromatic
D
Antiaromatic
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