NEET Question Pattern Overview (OC-03): This session contributes 2–3 questions per year to NEET, consistently testing a narrow set of high-yield concepts. The question formats and answer patterns are highly predictable.

PYQ Pattern 1 — Directing Effect Prediction Format: "The major product of [reaction] on [substituted benzene] is ___." Key skill: Identify whether the existing substituent is o/p or meta directing, then select the regioisomer accordingly. High-frequency substituents: -Cl (o/p + deactivating trap), -$NO_{2}$ (meta), -OH (o/p), -$CH_{3}$ (o/p). Trap: A question gives chlorobenzene + $HNO_{3}$/$H_{2}SO_{4}$ and lists "m-chloronitrobenzene" as a trap option (because -Cl is deactivating). Correct answer: o/p-chloronitrobenzene (para slightly favored).

PYQ Pattern 2 — Halogen Anomaly Format: "Which of the following statements about halogens in EAS is correct?" Correct answer: o/p directing + deactivating — occurs in nearly every NEET cycle. Common trap option: "Halogens are meta directors because they are deactivating."

PYQ Pattern 3 — FC Acylation vs. Alkylation Format: "Which Friedel-Crafts reaction gives no carbocation rearrangement?" OR "Which is preferred for synthesis of a specific alkylbenzene?" Answer: FC Acylation — resonance-stabilized acylium does not rearrange; can then reduce ketone (Clemmensen/Wolff-Kishner) to give the alkylbenzene with correct structure.

PYQ Pattern 4 — Aromaticity Classification Format: "Which compound is anti-aromatic / non-aromatic / aromatic?" Test compounds: COT (non-aromatic trap), cyclobutadiene (anti-aromatic), cyclopentadienyl anion (aromatic), pyridine (aromatic). Key distinction: COT has 4n electrons but is non-aromatic (not anti-aromatic) because non-planar.

PYQ Pattern 5 — EAS Intermediate / Mechanism Format: "The intermediate formed during EAS of benzene is..." Answer: Arenium ion / sigma complex / Wheland intermediate — a non-aromatic carbocation.

Marks Strategy: Patterns 1 and 2 together are worth 4–6 marks per exam cycle and require only mastery of directing effects. Prioritize these two patterns first.