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NEET 2023 against NEET 2019

What one sitting asked that the other did not — as a share of each paper, because NEET 2023 carries 176 questions and NEET 2019 carries 158. Comparing raw counts across papers of different sizes invents a trend in every row.

Asked more in NEET 2023

  • Alternating Current+2.3 pp

    2.3% (4) in NEET 2023 · 0.0% (0) in NEET 2019

  • Organisms and Populations+2.3 pp

    2.3% (4) in NEET 2023 · 0.0% (0) in NEET 2019

  • Cell Cycle and Cell Division+2.1 pp

    3.4% (6) in NEET 2023 · 1.3% (2) in NEET 2019

  • Alcohols, Phenols and Ethers+1.7 pp

    1.7% (3) in NEET 2023 · 0.0% (0) in NEET 2019

  • Photosynthesis in Higher Plants+1.7 pp

    1.7% (3) in NEET 2023 · 0.0% (0) in NEET 2019

  • Current Electricity+1.6 pp

    2.8% (5) in NEET 2023 · 1.3% (2) in NEET 2019

Asked more in NEET 2019

  • Microbes in Human Welfare-2.5 pp

    0.0% (0) in NEET 2023 · 2.5% (4) in NEET 2019

  • Biological Classification-1.9 pp

    0.0% (0) in NEET 2023 · 1.9% (3) in NEET 2019

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 2023

  • Alternating Current · 4
  • Organisms and Populations · 4
  • Electrostatic Potential and Capacitance · 2
  • Waves · 1
  • Haloalkanes and Haloarenes · 2
  • Alcohols, Phenols and Ethers · 3
  • Purification and Characterisation of Organic Compounds · 1
  • Photosynthesis in Higher Plants · 3

Only in NEET 2019

  • Thermal Properties of Matter · 2
  • Solutions · 2
  • Microbes in Human Welfare · 4
  • Biological Classification · 3
  • Organic Chemistry: Some Basic Principles and Techniques · 1
  • The Living World · 1

Every chapter, both papers

ChapterNEET 2023NEET 2019Change
Principles of Inheritance and VariationBotany2.8% (5)3.8% (6)-1.0 pp
Molecular Basis of InheritanceBotany3.4% (6)3.2% (5)+0.2 pp
The p-Block ElementsChemistry2.3% (4)3.2% (5)-0.9 pp
BiomoleculesZoology2.8% (5)2.5% (4)+0.3 pp
Cell: The Unit of LifeBotany2.3% (4)2.5% (4)-0.3 pp
Cell Cycle and Cell DivisionBotany3.4% (6)1.3% (2)+2.1 pp
Sexual Reproduction in Flowering PlantsBotany1.7% (3)2.5% (4)-0.8 pp
HydrocarbonsChemistry1.7% (3)2.5% (4)-0.8 pp
Biotechnology: Principles and ProcessesZoology2.3% (4)1.9% (3)+0.4 pp
Structural Organisation in AnimalsZoology2.3% (4)1.9% (3)+0.4 pp
Current ElectricityPhysics2.8% (5)1.3% (2)+1.6 pp
EvolutionZoology1.1% (2)2.5% (4)-1.4 pp
Human ReproductionZoology1.7% (3)1.9% (3)-0.2 pp
Plant KingdomBotany1.7% (3)1.9% (3)-0.2 pp
ThermodynamicsChemistry1.7% (3)1.9% (3)-0.2 pp
Ray Optics and Optical InstrumentsPhysics1.7% (3)1.9% (3)-0.2 pp
Reproductive HealthZoology1.7% (3)1.9% (3)-0.2 pp
Human Health and DiseaseZoology1.7% (3)1.9% (3)-0.2 pp
Animal KingdomZoology2.3% (4)1.3% (2)+1.0 pp
Chemical Bonding and Molecular StructureChemistry2.3% (4)1.3% (2)+1.0 pp
Biodiversity and ConservationBotany1.1% (2)1.9% (3)-0.8 pp
Chemical Coordination and IntegrationZoology1.1% (2)1.9% (3)-0.8 pp
Electric Charges and FieldsPhysics1.1% (2)1.9% (3)-0.8 pp
Semiconductor ElectronicsPhysics1.7% (3)1.3% (2)+0.4 pp
Anatomy of Flowering PlantsBotany1.7% (3)1.3% (2)+0.4 pp
Plant Growth and DevelopmentBotany1.7% (3)1.3% (2)+0.4 pp
Respiration in PlantsBotany1.7% (3)1.3% (2)+0.4 pp
Microbes in Human WelfareBotany0.0% (0)2.5% (4)-2.5 pp
Work, Energy and PowerPhysics0.6% (1)1.9% (3)-1.3 pp
OscillationsPhysics0.6% (1)1.9% (3)-1.3 pp
EquilibriumChemistry0.6% (1)1.9% (3)-1.3 pp
Body Fluids and CirculationZoology1.1% (2)1.3% (2)-0.1 pp
Excretory Products and their EliminationZoology1.1% (2)1.3% (2)-0.1 pp
Mechanical Properties of FluidsPhysics1.1% (2)1.3% (2)-0.1 pp
Moving Charges and MagnetismPhysics1.1% (2)1.3% (2)-0.1 pp
GravitationPhysics1.1% (2)1.3% (2)-0.1 pp
ElectrochemistryChemistry1.1% (2)1.3% (2)-0.1 pp
Structure of AtomChemistry1.1% (2)1.3% (2)-0.1 pp
Locomotion and MovementZoology1.1% (2)1.3% (2)-0.1 pp
Chemical KineticsChemistry1.1% (2)1.3% (2)-0.1 pp
EcosystemBotany1.1% (2)1.3% (2)-0.1 pp
Laws of MotionPhysics1.1% (2)1.3% (2)-0.1 pp
Motion in a Straight LinePhysics1.7% (3)0.6% (1)+1.1 pp
Morphology of Flowering PlantsBotany1.7% (3)0.6% (1)+1.1 pp
Aldehydes, Ketones and Carboxylic AcidsChemistry1.7% (3)0.6% (1)+1.1 pp
Alternating CurrentPhysics2.3% (4)0.0% (0)+2.3 pp
Organisms and PopulationsBotany2.3% (4)0.0% (0)+2.3 pp
Biological ClassificationBotany0.0% (0)1.9% (3)-1.9 pp
Motion in a PlanePhysics0.6% (1)1.3% (2)-0.7 pp
System of Particles and Rotational MotionPhysics0.6% (1)1.3% (2)-0.7 pp
Breathing and Exchange of GasesZoology0.6% (1)1.3% (2)-0.7 pp
Electromagnetic WavesPhysics0.6% (1)1.3% (2)-0.7 pp
Biotechnology and its ApplicationsZoology0.6% (1)1.3% (2)-0.7 pp
The d- and f-Block ElementsChemistry1.1% (2)0.6% (1)+0.5 pp
AtomsPhysics1.1% (2)0.6% (1)+0.5 pp
Units and MeasurementsPhysics1.1% (2)0.6% (1)+0.5 pp
Dual Nature of Radiation and MatterPhysics1.1% (2)0.6% (1)+0.5 pp
Neural Control and CoordinationZoology1.1% (2)0.6% (1)+0.5 pp
Coordination CompoundsChemistry1.1% (2)0.6% (1)+0.5 pp
Alcohols, Phenols and EthersChemistry1.7% (3)0.0% (0)+1.7 pp
Photosynthesis in Higher PlantsBotany1.7% (3)0.0% (0)+1.7 pp
Thermal Properties of MatterPhysics0.0% (0)1.3% (2)-1.3 pp
SolutionsChemistry0.0% (0)1.3% (2)-1.3 pp
NucleiPhysics0.6% (1)0.6% (1)-0.1 pp
Redox ReactionsChemistry0.6% (1)0.6% (1)-0.1 pp
Mechanical Properties of SolidsPhysics0.6% (1)0.6% (1)-0.1 pp
Classification of Elements and Periodicity in PropertiesChemistry0.6% (1)0.6% (1)-0.1 pp
AminesChemistry0.6% (1)0.6% (1)-0.1 pp
Wave OpticsPhysics0.6% (1)0.6% (1)-0.1 pp
Some Basic Concepts of ChemistryChemistry0.6% (1)0.6% (1)-0.1 pp
Electromagnetic InductionPhysics0.6% (1)0.6% (1)-0.1 pp
Kinetic TheoryPhysics0.6% (1)0.6% (1)-0.1 pp
Magnetism and MatterPhysics0.6% (1)0.6% (1)-0.1 pp
Electrostatic Potential and CapacitancePhysics1.1% (2)0.0% (0)+1.1 pp
Haloalkanes and HaloarenesChemistry1.1% (2)0.0% (0)+1.1 pp
Organic Chemistry: Some Basic Principles and TechniquesChemistry0.0% (0)0.6% (1)-0.6 pp
The Living WorldBotany0.0% (0)0.6% (1)-0.6 pp
WavesPhysics0.6% (1)0.0% (0)+0.6 pp
Purification and Characterisation of Organic CompoundsChemistry0.6% (1)0.0% (0)+0.6 pp

71 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.