PHYSICAL CHEMISTRY:
  Basic Concepts: mole concept, stoichiometry, limiting reagent
  Atomic Structure: Bohr model, quantum numbers, orbital shapes
  Chemical Bonding: VSEPR, hybridisation, MO theory, H-bonding
  States of Matter: ideal gas laws, real gases, liquid properties
  Thermodynamics: enthalpy, entropy, Gibbs energy, Hess's law
  Equilibrium: Kc, Kp, Le Chatelier, acid-base, solubility product
  Electrochemistry: EMF, Nernst equation, electrolysis, Faraday's laws
  Chemical Kinetics: rate laws, activation energy, Arrhenius equation
  Nuclear Chemistry: half-life, decay types, nuclear reactions

INORGANIC CHEMISTRY:
  Periodic Table: trends in properties, atomic radius, IE, EA, EN
  s-block: alkali and alkaline earth metal properties and compounds
  p-block: groups 13-18, oxides, hydrides, halides, uses
  d-block: transition metals, coordination compounds (IUPAC naming, isomers)
  f-block: lanthanides and actinides (general properties)
  Metallurgy: ore concentration, extraction, refining processes
  Environmental Chemistry: air/water/soil pollution

ORGANIC CHEMISTRY:
  Basic Principles: IUPAC naming, isomers, hybridisation, inductive effects
  Hydrocarbons: alkanes, alkenes, alkynes — reactions, mechanisms
  Functional Groups: alcohols, aldehydes, ketones, carboxylic acids, amines
  Aromatic Chemistry: benzene reactions (EAS), Birch reduction
  Polymers: addition and condensation polymers
  Biomolecules: carbohydrates, proteins, nucleic acids, vitamins
  Practical Chemistry: detection, separation, purification techniques

MOST MARKS IN JEE MAIN CHEMISTRY:
  1. Coordination compounds (8-10 marks) — IUPAC naming, isomers, VBT/CFT
  2. Organic reactions (15-20 marks) — mechanisms, name reactions
  3. Equilibrium + Ionic equilibrium (8-10 marks)
  4. Electrochemistry (8 marks) — Nernst, electrolysis, cells
  5. p-block elements (8-10 marks) — oxides, hydrides, structure

NAME REACTIONS (must know):
  Aldol condensation | Cannizzaro reaction | Claisen condensation
  Beckmann rearrangement | Baeyer-Villiger oxidation | Reimer-Tiemann
  Sandmeyer reaction | Gabriel synthesis | Hell-Volhard-Zelinsky
  Friedel-Crafts (alkylation + acylation) | Kolbe reaction

PHYSICAL CHEMISTRY: requires calculation practice (Kc/Kp, Nernst, rate constant)
ORGANIC: mechanism understanding over memorisation — arrow pushing
INORGANIC: highly factual — daily 30-minute revision keeps in memory

MOLE CONCEPT: foundation of physical chemistry — master first
NCERT: in inorganic chemistry, NCERT is almost sufficient for JEE Main
BOOKS: NCERT + OP Tandon (Physical) + Morrison Boyd (Organic) + JD Lee (Inorganic)