NEET 2021 against NEET 2023
What one sitting asked that the other did not — as a share of each paper, because NEET 2021 carries 177 questions and NEET 2023 carries 176. Comparing raw counts across papers of different sizes invents a trend in every row.
NEET 2025 vs NEET 2024NEET 2025 vs NEET 2023NEET 2025 vs NEET 2022NEET 2025 vs NEET 2021NEET 2025 vs NEET 2020NEET 2025 vs NEET 2019NEET 2024 vs NEET 2025NEET 2024 vs NEET 2023NEET 2024 vs NEET 2022NEET 2024 vs NEET 2021NEET 2024 vs NEET 2020NEET 2024 vs NEET 2019NEET 2023 vs NEET 2025NEET 2023 vs NEET 2024NEET 2023 vs NEET 2022NEET 2023 vs NEET 2021NEET 2023 vs NEET 2020NEET 2023 vs NEET 2019NEET 2022 vs NEET 2025NEET 2022 vs NEET 2024NEET 2022 vs NEET 2023NEET 2022 vs NEET 2021NEET 2022 vs NEET 2020NEET 2022 vs NEET 2019NEET 2021 vs NEET 2025NEET 2021 vs NEET 2024NEET 2021 vs NEET 2023NEET 2021 vs NEET 2022NEET 2021 vs NEET 2020NEET 2021 vs NEET 2019NEET 2020 vs NEET 2025NEET 2020 vs NEET 2024NEET 2020 vs NEET 2023NEET 2020 vs NEET 2022NEET 2020 vs NEET 2021NEET 2020 vs NEET 2019NEET 2019 vs NEET 2025NEET 2019 vs NEET 2024NEET 2019 vs NEET 2023NEET 2019 vs NEET 2022NEET 2019 vs NEET 2021NEET 2019 vs NEET 2020
Asked more in NEET 2021
- Biotechnology and its Applications+1.7 pp
2.3% (4) in NEET 2021 · 0.6% (1) in NEET 2023
- Electrostatic Potential and Capacitance+1.7 pp
2.8% (5) in NEET 2021 · 1.1% (2) in NEET 2023
- Biotechnology: Principles and Processes+1.7 pp
4.0% (7) in NEET 2021 · 2.3% (4) in NEET 2023
- Molecular Basis of Inheritance+1.7 pp
5.1% (9) in NEET 2021 · 3.4% (6) in NEET 2023
Asked more in NEET 2023
— nothing moved this way
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 2021
- Thermal Properties of Matter · 1
- Microbes in Human Welfare · 1
- Biological Classification · 1
- The Living World · 1
- Organic Chemistry: Some Basic Principles and Techniques · 2
- Solutions · 2
Only in NEET 2023
- Biodiversity and Conservation · 2
- Atoms · 2
- Mechanical Properties of Solids · 1
- Wave Optics · 1
- Neural Control and Coordination · 2
- Classification of Elements and Periodicity in Properties · 1
- Magnetism and Matter · 1
- Chemical Coordination and Integration · 2
- Waves · 1
- Purification and Characterisation of Organic Compounds · 1
Every chapter, both papers
| Chapter | NEET 2021 | NEET 2023 | Change |
|---|---|---|---|
| Molecular Basis of InheritanceBotany | 5.1% (9) | 3.4% (6) | +1.7 pp |
| Cell Cycle and Cell DivisionBotany | 2.8% (5) | 3.4% (6) | -0.6 pp |
| Biotechnology: Principles and ProcessesZoology | 4.0% (7) | 2.3% (4) | +1.7 pp |
| BiomoleculesZoology | 2.8% (5) | 2.8% (5) | -0.0 pp |
| Current ElectricityPhysics | 2.3% (4) | 2.8% (5) | -0.6 pp |
| Principles of Inheritance and VariationBotany | 1.7% (3) | 2.8% (5) | -1.1 pp |
| Organisms and PopulationsBotany | 2.3% (4) | 2.3% (4) | -0.0 pp |
| The p-Block ElementsChemistry | 2.3% (4) | 2.3% (4) | -0.0 pp |
| Animal KingdomZoology | 2.3% (4) | 2.3% (4) | -0.0 pp |
| Plant KingdomBotany | 2.8% (5) | 1.7% (3) | +1.1 pp |
| Alternating CurrentPhysics | 1.7% (3) | 2.3% (4) | -0.6 pp |
| Cell: The Unit of LifeBotany | 1.7% (3) | 2.3% (4) | -0.6 pp |
| Anatomy of Flowering PlantsBotany | 2.3% (4) | 1.7% (3) | +0.6 pp |
| Ray Optics and Optical InstrumentsPhysics | 2.3% (4) | 1.7% (3) | +0.6 pp |
| Electrostatic Potential and CapacitancePhysics | 2.8% (5) | 1.1% (2) | +1.7 pp |
| Chemical Bonding and Molecular StructureChemistry | 1.1% (2) | 2.3% (4) | -1.1 pp |
| Structural Organisation in AnimalsZoology | 1.1% (2) | 2.3% (4) | -1.1 pp |
| Human ReproductionZoology | 1.7% (3) | 1.7% (3) | -0.0 pp |
| Plant Growth and DevelopmentBotany | 1.7% (3) | 1.7% (3) | -0.0 pp |
| Semiconductor ElectronicsPhysics | 1.7% (3) | 1.7% (3) | -0.0 pp |
| HydrocarbonsChemistry | 1.7% (3) | 1.7% (3) | -0.0 pp |
| Aldehydes, Ketones and Carboxylic AcidsChemistry | 1.7% (3) | 1.7% (3) | -0.0 pp |
| Sexual Reproduction in Flowering PlantsBotany | 1.7% (3) | 1.7% (3) | -0.0 pp |
| Reproductive HealthZoology | 1.7% (3) | 1.7% (3) | -0.0 pp |
| Moving Charges and MagnetismPhysics | 2.3% (4) | 1.1% (2) | +1.1 pp |
| Morphology of Flowering PlantsBotany | 1.1% (2) | 1.7% (3) | -0.6 pp |
| ThermodynamicsChemistry | 1.1% (2) | 1.7% (3) | -0.6 pp |
| Human Health and DiseaseZoology | 1.1% (2) | 1.7% (3) | -0.6 pp |
| Photosynthesis in Higher PlantsBotany | 1.1% (2) | 1.7% (3) | -0.6 pp |
| Locomotion and MovementZoology | 1.7% (3) | 1.1% (2) | +0.6 pp |
| EcosystemBotany | 1.7% (3) | 1.1% (2) | +0.6 pp |
| Units and MeasurementsPhysics | 1.7% (3) | 1.1% (2) | +0.6 pp |
| Biotechnology and its ApplicationsZoology | 2.3% (4) | 0.6% (1) | +1.7 pp |
| Motion in a Straight LinePhysics | 0.6% (1) | 1.7% (3) | -1.1 pp |
| Alcohols, Phenols and EthersChemistry | 0.6% (1) | 1.7% (3) | -1.1 pp |
| Respiration in PlantsBotany | 0.6% (1) | 1.7% (3) | -1.1 pp |
| Body Fluids and CirculationZoology | 1.1% (2) | 1.1% (2) | -0.0 pp |
| Chemical KineticsChemistry | 1.1% (2) | 1.1% (2) | -0.0 pp |
| Dual Nature of Radiation and MatterPhysics | 1.1% (2) | 1.1% (2) | -0.0 pp |
| ElectrochemistryChemistry | 1.1% (2) | 1.1% (2) | -0.0 pp |
| GravitationPhysics | 1.1% (2) | 1.1% (2) | -0.0 pp |
| Structure of AtomChemistry | 1.1% (2) | 1.1% (2) | -0.0 pp |
| EvolutionZoology | 1.1% (2) | 1.1% (2) | -0.0 pp |
| Coordination CompoundsChemistry | 1.1% (2) | 1.1% (2) | -0.0 pp |
| Haloalkanes and HaloarenesChemistry | 1.1% (2) | 1.1% (2) | -0.0 pp |
| The d- and f-Block ElementsChemistry | 1.1% (2) | 1.1% (2) | -0.0 pp |
| NucleiPhysics | 1.7% (3) | 0.6% (1) | +1.1 pp |
| Breathing and Exchange of GasesZoology | 1.7% (3) | 0.6% (1) | +1.1 pp |
| Mechanical Properties of FluidsPhysics | 0.6% (1) | 1.1% (2) | -0.6 pp |
| Excretory Products and their EliminationZoology | 0.6% (1) | 1.1% (2) | -0.6 pp |
| Electric Charges and FieldsPhysics | 0.6% (1) | 1.1% (2) | -0.6 pp |
| Laws of MotionPhysics | 0.6% (1) | 1.1% (2) | -0.6 pp |
| Work, Energy and PowerPhysics | 1.1% (2) | 0.6% (1) | +0.6 pp |
| AminesChemistry | 1.1% (2) | 0.6% (1) | +0.6 pp |
| System of Particles and Rotational MotionPhysics | 1.1% (2) | 0.6% (1) | +0.6 pp |
| Motion in a PlanePhysics | 1.1% (2) | 0.6% (1) | +0.6 pp |
| OscillationsPhysics | 1.1% (2) | 0.6% (1) | +0.6 pp |
| Electromagnetic WavesPhysics | 1.1% (2) | 0.6% (1) | +0.6 pp |
| Biodiversity and ConservationBotany | 0.0% (0) | 1.1% (2) | -1.1 pp |
| AtomsPhysics | 0.0% (0) | 1.1% (2) | -1.1 pp |
| Neural Control and CoordinationZoology | 0.0% (0) | 1.1% (2) | -1.1 pp |
| Chemical Coordination and IntegrationZoology | 0.0% (0) | 1.1% (2) | -1.1 pp |
| Electromagnetic InductionPhysics | 0.6% (1) | 0.6% (1) | -0.0 pp |
| Kinetic TheoryPhysics | 0.6% (1) | 0.6% (1) | -0.0 pp |
| Redox ReactionsChemistry | 0.6% (1) | 0.6% (1) | -0.0 pp |
| EquilibriumChemistry | 0.6% (1) | 0.6% (1) | -0.0 pp |
| Some Basic Concepts of ChemistryChemistry | 0.6% (1) | 0.6% (1) | -0.0 pp |
| Organic Chemistry: Some Basic Principles and TechniquesChemistry | 1.1% (2) | 0.0% (0) | +1.1 pp |
| SolutionsChemistry | 1.1% (2) | 0.0% (0) | +1.1 pp |
| Mechanical Properties of SolidsPhysics | 0.0% (0) | 0.6% (1) | -0.6 pp |
| Wave OpticsPhysics | 0.0% (0) | 0.6% (1) | -0.6 pp |
| Classification of Elements and Periodicity in PropertiesChemistry | 0.0% (0) | 0.6% (1) | -0.6 pp |
| Magnetism and MatterPhysics | 0.0% (0) | 0.6% (1) | -0.6 pp |
| WavesPhysics | 0.0% (0) | 0.6% (1) | -0.6 pp |
| Purification and Characterisation of Organic CompoundsChemistry | 0.0% (0) | 0.6% (1) | -0.6 pp |
| Thermal Properties of MatterPhysics | 0.6% (1) | 0.0% (0) | +0.6 pp |
| Microbes in Human WelfareBotany | 0.6% (1) | 0.0% (0) | +0.6 pp |
| Biological ClassificationBotany | 0.6% (1) | 0.0% (0) | +0.6 pp |
| The Living WorldBotany | 0.6% (1) | 0.0% (0) | +0.6 pp |
75 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.