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![How many of the following are aromatic?
2
3
4](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1c6ff260-f6a3-496d-b11d-a93e8c022be5%2Fde012594-6e71-4cf3-9a5f-99b47270587d%2Fkczx95h_processed.png&w=3840&q=75)
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- Which of the following structures is aromatic? + +1. What letter has an aldehyde with molecular formula C₄H₈O. 2. What letter has an ester with molecular formula C₄H₈O₂ 3. What letter has a ketone with molecular formula C₄H₈O₂ 4. What letter has a carboxylic acid with molecular formula C₄H₈O₂Is 2-pyridone aromatic?
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