NEET 2021 against NEET 2020
What one sitting asked that the other did not — as a share of each paper, because NEET 2021 carries 177 questions and NEET 2020 carries 158. 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
- Molecular Basis of Inheritance+2.6 pp
5.1% (9) in NEET 2021 · 2.5% (4) in NEET 2020
- The p-Block Elements+1.6 pp
2.3% (4) in NEET 2021 · 0.6% (1) in NEET 2020
- Moving Charges and Magnetism+1.6 pp
2.3% (4) in NEET 2021 · 0.6% (1) in NEET 2020
- Organisms and Populations+1.6 pp
2.3% (4) in NEET 2021 · 0.6% (1) in NEET 2020
Asked more in NEET 2020
- Chemical Coordination and Integration-1.9 pp
0.0% (0) in NEET 2021 · 1.9% (3) in NEET 2020
- Biomolecules-1.6 pp
2.8% (5) in NEET 2021 · 4.4% (7) in NEET 2020
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
- Electromagnetic Induction · 1
- Work, Energy and Power · 2
- Motion in a Plane · 2
- The Living World · 1
Only in NEET 2020
- Magnetism and Matter · 1
- Biodiversity and Conservation · 2
- Atoms · 1
- Chemical Coordination and Integration · 3
- Purification and Characterisation of Organic Compounds · 1
- Wave Optics · 2
- Mechanical Properties of Solids · 2
- Waves · 1
Every chapter, both papers
| Chapter | NEET 2021 | NEET 2020 | Change |
|---|---|---|---|
| Biotechnology: Principles and ProcessesZoology | 4.0% (7) | 3.8% (6) | +0.2 pp |
| Molecular Basis of InheritanceBotany | 5.1% (9) | 2.5% (4) | +2.6 pp |
| BiomoleculesChemistry | 2.8% (5) | 4.4% (7) | -1.6 pp |
| Cell Cycle and Cell DivisionBotany | 2.8% (5) | 2.5% (4) | +0.3 pp |
| Animal KingdomZoology | 2.3% (4) | 2.5% (4) | -0.3 pp |
| Current ElectricityPhysics | 2.3% (4) | 2.5% (4) | -0.3 pp |
| Electrostatic Potential and CapacitancePhysics | 2.8% (5) | 1.9% (3) | +0.9 pp |
| Plant KingdomBotany | 2.8% (5) | 1.9% (3) | +0.9 pp |
| Principles of Inheritance and VariationBotany | 1.7% (3) | 2.5% (4) | -0.8 pp |
| Semiconductor ElectronicsPhysics | 1.7% (3) | 2.5% (4) | -0.8 pp |
| Biotechnology and its ApplicationsZoology | 2.3% (4) | 1.9% (3) | +0.4 pp |
| EvolutionZoology | 1.1% (2) | 2.5% (4) | -1.4 pp |
| ThermodynamicsPhysics | 1.1% (2) | 2.5% (4) | -1.4 pp |
| Dual Nature of Radiation and MatterPhysics | 1.1% (2) | 2.5% (4) | -1.4 pp |
| Plant Growth and DevelopmentBotany | 1.7% (3) | 1.9% (3) | -0.2 pp |
| HydrocarbonsChemistry | 1.7% (3) | 1.9% (3) | -0.2 pp |
| Sexual Reproduction in Flowering PlantsBotany | 1.7% (3) | 1.9% (3) | -0.2 pp |
| Human ReproductionZoology | 1.7% (3) | 1.9% (3) | -0.2 pp |
| Anatomy of Flowering PlantsBotany | 2.3% (4) | 1.3% (2) | +1.0 pp |
| Ray Optics and Optical InstrumentsPhysics | 2.3% (4) | 1.3% (2) | +1.0 pp |
| Human Health and DiseaseZoology | 1.1% (2) | 1.9% (3) | -0.8 pp |
| Morphology of Flowering PlantsBotany | 1.1% (2) | 1.9% (3) | -0.8 pp |
| EcosystemBotany | 1.7% (3) | 1.3% (2) | +0.4 pp |
| Aldehydes, Ketones and Carboxylic AcidsChemistry | 1.7% (3) | 1.3% (2) | +0.4 pp |
| Units and MeasurementsPhysics | 1.7% (3) | 1.3% (2) | +0.4 pp |
| NucleiPhysics | 1.7% (3) | 1.3% (2) | +0.4 pp |
| Reproductive HealthZoology | 1.7% (3) | 1.3% (2) | +0.4 pp |
| Breathing and Exchange of GasesZoology | 1.7% (3) | 1.3% (2) | +0.4 pp |
| Cell: The Unit of LifeBotany | 1.7% (3) | 1.3% (2) | +0.4 pp |
| Alternating CurrentPhysics | 1.7% (3) | 1.3% (2) | +0.4 pp |
| The p-Block ElementsChemistry | 2.3% (4) | 0.6% (1) | +1.6 pp |
| Moving Charges and MagnetismPhysics | 2.3% (4) | 0.6% (1) | +1.6 pp |
| Organisms and PopulationsBotany | 2.3% (4) | 0.6% (1) | +1.6 pp |
| Kinetic TheoryPhysics | 0.6% (1) | 1.9% (3) | -1.3 pp |
| System of Particles and Rotational MotionPhysics | 1.1% (2) | 1.3% (2) | -0.1 pp |
| ElectrochemistryChemistry | 1.1% (2) | 1.3% (2) | -0.1 pp |
| Chemical KineticsChemistry | 1.1% (2) | 1.3% (2) | -0.1 pp |
| Photosynthesis in Higher PlantsBotany | 1.1% (2) | 1.3% (2) | -0.1 pp |
| The d- and f-Block ElementsChemistry | 1.1% (2) | 1.3% (2) | -0.1 pp |
| Coordination CompoundsChemistry | 1.1% (2) | 1.3% (2) | -0.1 pp |
| Body Fluids and CirculationZoology | 1.1% (2) | 1.3% (2) | -0.1 pp |
| Structural Organisation in AnimalsZoology | 1.1% (2) | 1.3% (2) | -0.1 pp |
| SolutionsChemistry | 1.1% (2) | 1.3% (2) | -0.1 pp |
| Chemical Bonding and Molecular StructureChemistry | 1.1% (2) | 1.3% (2) | -0.1 pp |
| Locomotion and MovementZoology | 1.7% (3) | 0.6% (1) | +1.1 pp |
| Chemical Coordination and IntegrationZoology | 0.0% (0) | 1.9% (3) | -1.9 pp |
| Microbes in Human WelfareBotany | 0.6% (1) | 1.3% (2) | -0.7 pp |
| Some Basic Concepts of ChemistryChemistry | 0.6% (1) | 1.3% (2) | -0.7 pp |
| AminesChemistry | 1.1% (2) | 0.6% (1) | +0.5 pp |
| OscillationsPhysics | 1.1% (2) | 0.6% (1) | +0.5 pp |
| Electromagnetic WavesPhysics | 1.1% (2) | 0.6% (1) | +0.5 pp |
| Haloalkanes and HaloarenesChemistry | 1.1% (2) | 0.6% (1) | +0.5 pp |
| GravitationPhysics | 1.1% (2) | 0.6% (1) | +0.5 pp |
| Structure of AtomChemistry | 1.1% (2) | 0.6% (1) | +0.5 pp |
| Organic Chemistry: Some Basic Principles and TechniquesChemistry | 1.1% (2) | 0.6% (1) | +0.5 pp |
| Biodiversity and ConservationBotany | 0.0% (0) | 1.3% (2) | -1.3 pp |
| Wave OpticsPhysics | 0.0% (0) | 1.3% (2) | -1.3 pp |
| Mechanical Properties of SolidsPhysics | 0.0% (0) | 1.3% (2) | -1.3 pp |
| Respiration in PlantsBotany | 0.6% (1) | 0.6% (1) | -0.1 pp |
| Thermal Properties of MatterPhysics | 0.6% (1) | 0.6% (1) | -0.1 pp |
| Alcohols, Phenols and EthersChemistry | 0.6% (1) | 0.6% (1) | -0.1 pp |
| Motion in a Straight LinePhysics | 0.6% (1) | 0.6% (1) | -0.1 pp |
| Redox ReactionsChemistry | 0.6% (1) | 0.6% (1) | -0.1 pp |
| Biological ClassificationBotany | 0.6% (1) | 0.6% (1) | -0.1 pp |
| Excretory Products and their EliminationZoology | 0.6% (1) | 0.6% (1) | -0.1 pp |
| Laws of MotionPhysics | 0.6% (1) | 0.6% (1) | -0.1 pp |
| Electric Charges and FieldsPhysics | 0.6% (1) | 0.6% (1) | -0.1 pp |
| EquilibriumChemistry | 0.6% (1) | 0.6% (1) | -0.1 pp |
| Mechanical Properties of FluidsPhysics | 0.6% (1) | 0.6% (1) | -0.1 pp |
| Work, Energy and PowerPhysics | 1.1% (2) | 0.0% (0) | +1.1 pp |
| Motion in a PlanePhysics | 1.1% (2) | 0.0% (0) | +1.1 pp |
| Magnetism and MatterPhysics | 0.0% (0) | 0.6% (1) | -0.6 pp |
| AtomsPhysics | 0.0% (0) | 0.6% (1) | -0.6 pp |
| Purification and Characterisation of Organic CompoundsChemistry | 0.0% (0) | 0.6% (1) | -0.6 pp |
| WavesPhysics | 0.0% (0) | 0.6% (1) | -0.6 pp |
| Electromagnetic InductionPhysics | 0.6% (1) | 0.0% (0) | +0.6 pp |
| The Living WorldBotany | 0.6% (1) | 0.0% (0) | +0.6 pp |
71 of 77 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.