Aromaticity is one of the more exciting topics in organic chemistry!
Partly because of it's potential for easy points on your quiz/exam.. that is IF you truly understand, not merely memorize: when you know what to look for to identify aromatic, antiaromatic and non aromatic compounds.
Start with the Aromaticity Review + Videos, then see how much you’ve mastered with the Aromaticity Practice Questions below.
Scroll down for PDF Solutions
Part 1: Aromatic, Antiaromatic, Non Aromatic
Determine if each molecule below is Aromatic, Antiaromatic or Non Aromatic. Explain your reasoning.
Need help? Review the first 2 videos in the Aromaticity Tutorial series
Part 2: Aromatic Electrons
Which lone pairs (if any) in each molecule are aromatic and part of the resonating system?
Hint: Review the last video in the Aromaticity Tutorial series
Part 3: Acidity and Basicity of Aromatic Compounds
Choose the most acidic/basic molecule or ion in each pair as specified below
Hint: When CARIO looks the same, compare the stability of the conjugates
Bonus Aromaticity Questions
Bonus Q1: Histidine pictured below is considered a basic amino acid due to WHICH nitrogen (blue or green) atom? Explain your answer
Bonus Q2: Explain why [16]Annulene pictured below is considered Non Aromatic rather than Antiaromatic
How did you do?
Not confident with this topic? Review the Aromaticity Tutorial + videos!
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