Aromatic Chemistry - GRE Subject Test: Chemistry
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Question
What is the value of 
from Huckel's rule for the given aromatic compound?
What is the value of
Answer
Huckel's rule states that an aromatic compound must have 
delocalized electrons. The electrons in each double bond are delocalized for this molecule. There are nine double bonds, and thus eighteen delocalized electrons.
If 4n+2=18, then n=4.
Huckel's rule states that an aromatic compound must have
If 4n+2=18, then n=4.
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