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NEET UG · Class 11 · Paper section 2 · rationalised NCERT

Chemistry Nine chapters split across the three branches — the Class 11 base that Class 12 physical, inorganic and organic all stand on.

9
Chapters
3
Units
18–20
Questions from Class 11
45 Q
Chemistry in the paper (180 marks)
0 of 9 chapters done
I

Physical Chemistry

Numerical-heavy and the most reusable. Mole concept and equilibrium repay early mastery.

NMC Units 1, 2, 4, 6, 7
Ch1

Some Basic Concepts of Chemistry

Mole conceptStoichiometry and limiting reagentEmpirical and molecular formulaConcentration termsSignificant figures
≈ 1–2 Q
Ch2

Structure of Atom

Bohr model and hydrogen spectrumde Broglie and HeisenbergQuantum numbersShapes of orbitalsAufbau, Pauli and Hund's rules
≈ 2 Q
Ch5

Thermodynamics

Internal energy and enthalpyHess's lawBond and reaction enthalpiesEntropy and Gibbs energySpontaneity criteria
≈ 2 Q
Ch6

Equilibrium

Kp, Kc and Le Chatelier's principleAcid–base theoriespH, buffers and indicatorsSalt hydrolysisSolubility product and common-ion effect
≈ 3 Q
Ch7

Redox Reactions

Oxidation number rulesBalancing by ion–electron methodTypes of redox reactionsRedox titrations
≈ 1 Q
II

Inorganic Chemistry

Trend-based and memory-light if the logic behind each periodic trend is clear.

NMC Units 3, 9
Ch3

Classification of Elements and Periodicity in Properties

Modern periodic laws, p, d, f block classificationAtomic and ionic radiiIonisation enthalpy and electron gain enthalpyElectronegativity trends
≈ 2 Q
Ch4

Chemical Bonding and Molecular Structure

Lewis structures and formal chargeVSEPR geometryHybridisationMolecular orbital theory and bond orderHydrogen bondingFajans' rules and dipole moment
≈ 3 Q
III

Organic Chemistry

Everything in Class 12 organic assumes these two chapters. Mechanisms over memory.

NMC Units 13, 14, 15
Ch8

Organic Chemistry — Some Basic Principles and Techniques

IUPAC nomenclatureStructural and stereo isomerismInductive, resonance and hyperconjugative effectsCarbocations, carbanions and free radicalsPurification, detection and estimation
≈ 3 Q
Ch9

Hydrocarbons

Alkanes and conformationsAlkenes and Markovnikov's rulePeroxide effectAlkynes and acidity of terminal alkynesAromaticity and Hückel's ruleElectrophilic substitution and directive influence
≈ 3 Q

Not in the NEET syllabus

The rationalised NCERT dropped five Class 11 chapters outright and the NMC syllabus followed. Older PYQ books still ask from them — recognise and move past those.