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NEET 2020 against NEET 2024

What one sitting asked that the other did not — as a share of each paper, because NEET 2020 carries 163 questions and NEET 2024 carries 200. Comparing raw counts across papers of different sizes invents a trend in every row.

No chapter moved by more than 1.5 percentage points between these two papers. That is a finding: the mix was essentially the same both times.

Present on one paper and absent from the other

Absent from one sitting is not absent from the syllabus. A chapter carrying one question one year and none the next has told you almost nothing.

Only in NEET 2020

  • Electric Charges and Fields · 1
  • Waves · 1

Only in NEET 2024

  • Motion in a Plane · 1
  • Electromagnetic Induction · 2
  • Principles Related to Practical Chemistry · 2
  • Work, Energy and Power · 2
  • Neural Control and Coordination · 2

Every chapter, both papers

ChapterNEET 2020NEET 2024Change
BiomoleculesZoology4.9% (8)3.5% (7)+1.4 pp
Biotechnology: Principles and ProcessesZoology3.7% (6)2.5% (5)+1.2 pp
Principles of Inheritance and VariationBotany2.5% (4)3.0% (6)-0.5 pp
Molecular Basis of InheritanceBotany2.5% (4)3.0% (6)-0.5 pp
Cell Cycle and Cell DivisionBotany2.5% (4)2.0% (4)+0.5 pp
EvolutionZoology2.5% (4)2.0% (4)+0.5 pp
ThermodynamicsChemistry2.5% (4)2.0% (4)+0.5 pp
Animal KingdomZoology2.5% (4)2.0% (4)+0.5 pp
Current ElectricityPhysics2.5% (4)2.0% (4)+0.5 pp
Human Health and DiseaseZoology1.8% (3)2.5% (5)-0.7 pp
Morphology of Flowering PlantsBotany1.8% (3)2.5% (5)-0.7 pp
Plant Growth and DevelopmentBotany1.8% (3)2.5% (5)-0.7 pp
Human ReproductionZoology1.8% (3)2.5% (5)-0.7 pp
Semiconductor ElectronicsPhysics2.5% (4)1.5% (3)+1.0 pp
Electrostatic Potential and CapacitancePhysics1.8% (3)2.0% (4)-0.2 pp
Biodiversity and ConservationBotany1.2% (2)2.5% (5)-1.3 pp
The p-Block ElementsChemistry2.5% (4)1.0% (2)+1.5 pp
Dual Nature of Radiation and MatterPhysics2.5% (4)1.0% (2)+1.5 pp
Cell: The Unit of LifeBotany1.2% (2)2.0% (4)-0.8 pp
Chemical Bonding and Molecular StructureChemistry1.2% (2)2.0% (4)-0.8 pp
Structural Organisation in AnimalsZoology1.2% (2)2.0% (4)-0.8 pp
Biotechnology and its ApplicationsZoology1.8% (3)1.0% (2)+0.8 pp
Chemical Coordination and IntegrationZoology1.8% (3)1.0% (2)+0.8 pp
Sexual Reproduction in Flowering PlantsBotany1.8% (3)1.0% (2)+0.8 pp
HydrocarbonsChemistry1.8% (3)1.0% (2)+0.8 pp
Coordination CompoundsChemistry1.2% (2)1.5% (3)-0.3 pp
Aldehydes, Ketones and Carboxylic AcidsChemistry1.2% (2)1.5% (3)-0.3 pp
Units and MeasurementsPhysics1.2% (2)1.5% (3)-0.3 pp
Chemical KineticsChemistry1.2% (2)1.5% (3)-0.3 pp
Photosynthesis in Higher PlantsBotany1.2% (2)1.5% (3)-0.3 pp
The d- and f-Block ElementsChemistry1.2% (2)1.5% (3)-0.3 pp
Some Basic Concepts of ChemistryChemistry1.2% (2)1.5% (3)-0.3 pp
Anatomy of Flowering PlantsBotany1.2% (2)1.5% (3)-0.3 pp
Kinetic TheoryPhysics1.8% (3)0.5% (1)+1.3 pp
Plant KingdomBotany1.8% (3)0.5% (1)+1.3 pp
System of Particles and Rotational MotionPhysics1.2% (2)1.0% (2)+0.2 pp
ElectrochemistryChemistry1.2% (2)1.0% (2)+0.2 pp
Reproductive HealthZoology1.2% (2)1.0% (2)+0.2 pp
Body Fluids and CirculationZoology1.2% (2)1.0% (2)+0.2 pp
Ray Optics and Optical InstrumentsPhysics1.2% (2)1.0% (2)+0.2 pp
Wave OpticsPhysics1.2% (2)1.0% (2)+0.2 pp
Breathing and Exchange of GasesZoology1.2% (2)1.0% (2)+0.2 pp
SolutionsChemistry1.2% (2)1.0% (2)+0.2 pp
Alternating CurrentPhysics1.2% (2)1.0% (2)+0.2 pp
Magnetism and MatterPhysics0.6% (1)1.5% (3)-0.9 pp
EquilibriumChemistry0.6% (1)1.5% (3)-0.9 pp
Alcohols, Phenols and EthersChemistry0.6% (1)1.5% (3)-0.9 pp
EcosystemBotany1.2% (2)0.5% (1)+0.7 pp
Microbes in Human WelfareBotany1.2% (2)0.5% (1)+0.7 pp
NucleiPhysics1.2% (2)0.5% (1)+0.7 pp
Mechanical Properties of SolidsPhysics1.2% (2)0.5% (1)+0.7 pp
AminesChemistry0.6% (1)1.0% (2)-0.4 pp
Respiration in PlantsBotany0.6% (1)1.0% (2)-0.4 pp
OscillationsPhysics0.6% (1)1.0% (2)-0.4 pp
Classification of Elements and Periodicity in PropertiesChemistry0.6% (1)1.0% (2)-0.4 pp
AtomsPhysics0.6% (1)1.0% (2)-0.4 pp
Organisms and PopulationsBotany0.6% (1)1.0% (2)-0.4 pp
Structure of AtomChemistry0.6% (1)1.0% (2)-0.4 pp
GravitationPhysics0.6% (1)1.0% (2)-0.4 pp
Organic Chemistry: Some Basic Principles and TechniquesChemistry0.6% (1)1.0% (2)-0.4 pp
Electromagnetic WavesPhysics0.6% (1)1.0% (2)-0.4 pp
Biological ClassificationBotany0.6% (1)1.0% (2)-0.4 pp
Excretory Products and their EliminationZoology0.6% (1)1.0% (2)-0.4 pp
Laws of MotionPhysics0.6% (1)1.0% (2)-0.4 pp
Thermal Properties of MatterPhysics0.6% (1)0.5% (1)+0.1 pp
Purification and Characterisation of Organic CompoundsChemistry0.6% (1)0.5% (1)+0.1 pp
Moving Charges and MagnetismPhysics0.6% (1)0.5% (1)+0.1 pp
Motion in a Straight LinePhysics0.6% (1)0.5% (1)+0.1 pp
Locomotion and MovementZoology0.6% (1)0.5% (1)+0.1 pp
Redox ReactionsChemistry0.6% (1)0.5% (1)+0.1 pp
Mechanical Properties of FluidsPhysics0.6% (1)0.5% (1)+0.1 pp
Haloalkanes and HaloarenesChemistry0.6% (1)0.5% (1)+0.1 pp
Electromagnetic InductionPhysics0.0% (0)1.0% (2)-1.0 pp
Principles Related to Practical ChemistryChemistry0.0% (0)1.0% (2)-1.0 pp
Work, Energy and PowerPhysics0.0% (0)1.0% (2)-1.0 pp
Neural Control and CoordinationZoology0.0% (0)1.0% (2)-1.0 pp
Electric Charges and FieldsPhysics0.6% (1)0.0% (0)+0.6 pp
WavesPhysics0.6% (1)0.0% (0)+0.6 pp
Motion in a PlanePhysics0.0% (0)0.5% (1)-0.5 pp

79 of 79 chapters moved by less than 1.5 percentage points and are greyed out — at these chapter sizes, a swing of one or two questions is noise, not a signal.

Two sittings are two sittings. Everything above describes what these two papers contained. None of it predicts the next one, and a chapter that fell here is not a chapter to drop — the examiners are not running a trend. The aggregate across every complete paper is the more reliable number.