Problem: Choose the aromatic compounds among those shown.Check all that apply.

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Four Tests of Aromaticity:

  1. cyclic
  2. fully conjugated
  3. planar
  4. satisfies Huckel’s rule:
    • Aromatic(4n + 2)π electron numbers: 2, 6, 10, 14, etc(n = any integer)

Otherwise:

  • Anti-aromatic(4n)π electron numbers: 4, 8, 12, 16, etc. (multiples of 4) 
  • Non-aromatic  fails one or more or odd number π e-
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Problem Details

Choose the aromatic compounds among those shown.

Check all that apply.