Organic · Aromaticity & EAS
Aromaticity & Electrophilic Aromatic Substitution
Exam-focused revision notes on Aromaticity & Electrophilic Aromatic Substitution for CSIR-NET Chemical Sciences, GATE Chemistry and IIT-JAM — the core concepts, the formulas worth memorising, the traps that cost marks, and a quick-recall table.
Hückel's rule — the four conditions
A ring is aromatic only if it is cyclic, planar, fully conjugated, and contains 4n+2 π electrons. All four must hold.
What this note covers
- 1Hückel's rule — the four conditions
- 2Worked classifications
- 3Electrophilic aromatic substitution (EAS) — mechanism
- 4Common EAS reactions & their electrophiles
- 5Directing & activating effects
- 6Common traps students miss
- 730-second recall table
Read the full note
The remaining 6 sections — including the worked examples, the common-traps list and the quick-recall table — are part of ChemVidya Full Access, along with 6,000+ practice questions.
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