Ground state rules (Hückel, Woodward–Hoffmann) do not apply to excited states.
End-of-chapter problems focus on applying concepts to new structures rather than simple rote recall. Academic Relevance Advanced Organic Chemistry: Reactions And Mechanisms Advanced Organic Chemistry Maya Shankar Singh Pdf BEST
Free Radical Reactions and Molecular Rearrangements. Aromatic Systems: Aromatic Substitution and Aromaticity. Ground state rules (Hückel