NEET PYQ Chapter Wise: Questions by Chapter (2020)

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Answer first

We tagged all 180 questions in 1 official NEET paper (2020) by chapter. In Physics, Current Electricity leads with 5 questions. In Chemistry, Classification of Elements and Periodicity leads with 4 questions. In Biology, Human Physiology leads with 12 questions. Use the tables to see how often each chapter appears each year, then open a chapter for every question it has had.

Physics

Physics chapters by questions in each year. The last column is the total across the paper.

Most-asked Physics chapters: Current Electricity (5), Electrostatics (4), Optics (4), Units and Measurements (3), Properties of Solids and Liquids (3).

Current Electricity

NEET2020

• Q.144 · MCQ · Temperature Dependence of Resistance: Solids that have a negative temperature coefficient of resistance PDF
• Q.163 · MCQ · Resistivity: Graph of resistivity versus temperature for copper PDF
• Q.164 · MCQ · Colour Code: Resistance and tolerance from a four-band colour code PDF
• Q.173 · MCQ · Drift Velocity: Mobility of a charge from drift velocity and electric field PDF
• Q.179 · MCQ · Metre Bridge: Length of 1 ohm of resistance wire from metre bridge balance PDF

Electrostatics

NEET2020

• Q.151 · MCQ · Electric Field: Field outside a uniformly charged spherical conductor PDF
• Q.152 · MCQ · Electric Potential: Electric field in a region of constant potential PDF
• Q.166 · MCQ · Capacitors: Permittivity of dielectric from change in capacitance PDF
• Q.170 · MCQ · Electric Dipole: Potential of a short dipole at 60 degrees to its axis PDF

Optics

NEET2020

• Q.138 · MCQ · Polarisation: Range in which Brewster's angle lies PDF
• Q.140 · MCQ · Prism: Angle of incidence for normal emergence from a thin prism PDF
• Q.165 · MCQ · Young's Double Slit: Fringe width change when slit gap halves and screen distance doubles PDF
• Q.168 · MCQ · Resolving Power: Limit of resolution of a telescope with 2 m objective PDF

Units and Measurements

NEET2020

• Q.159 · MCQ · Unit Conversion: Express DNA bond energy of 1e-20 J in electron volts PDF
• Q.167 · MCQ · Dimensional Analysis: Dimensions of stress PDF
• Q.176 · MCQ · Significant Figures: Subtraction result written with correct significant figures PDF

Properties of Solids and Liquids

NEET2020

• Q.161 · MCQ · Elasticity: Young's modulus of a wire stretched by a suspended mass PDF
• Q.174 · MCQ · Calorimetry: Ratio of heat needed to warm two copper spheres of different radii PDF
• Q.178 · MCQ · Capillarity: Mass of water risen in a capillary of double radius PDF

Kinetic Theory of Gases

NEET2020

• Q.139 · MCQ · Ideal Gas Equation: Density of hydrogen at given pressure and temperature PDF
• Q.155 · MCQ · Mean Free Path: Expression for mean free path in terms of diameter and number density PDF
• Q.162 · MCQ · Equipartition of Energy: Average thermal energy of a monatomic gas molecule PDF

Atoms and Nuclei

NEET2020

• Q.136 · MCQ · Bohr Model: Species for which the Bohr model is not valid PDF
• Q.142 · MCQ · Mass-Energy Equivalence: Energy equivalent of 0.5 g of matter PDF
• Q.158 · MCQ · Nuclear Fission: Missing product in neutron-induced fission of U-235 PDF

Electronic Devices

NEET2020

• Q.153 · MCQ · p-n Junction: Bias condition that increases depletion region width PDF
• Q.156 · MCQ · Transistors: Correct condition for transistor action PDF
• Q.180 · MCQ · Logic Gates: Truth table of a gate circuit with both inputs passed through NOT gates PDF

Rotational Motion

NEET2020

• Q.148 · MCQ · Centre of Mass: Centre of mass of two masses joined by a 1 m rod PDF
• Q.149 · MCQ · Torque: Torque about origin from given force and position vectors PDF

Oscillations and Waves

NEET2020

• Q.145 · MCQ · Simple Harmonic Motion: Phase difference between displacement and acceleration in SHM PDF
• Q.147 · MCQ · Beats: Original frequency of string B from beat frequency change with tension PDF

Magnetic Effects of Current and Magnetism

NEET2020

• Q.171 · MCQ · Magnetic Properties of Materials: Permeability of an iron rod from its magnetic susceptibility PDF
• Q.172 · MCQ · Solenoid: Magnetic field at centre of a long current-carrying solenoid PDF

Electromagnetic Induction and AC

NEET2020

• Q.154 · MCQ · AC Circuits: RMS current through a capacitor on a 200 V, 50 Hz supply PDF
• Q.169 · MCQ · LCR Circuit: Power factor of LCR circuit from phase differences with L or C removed PDF

Electromagnetic Waves

NEET2020

• Q.137 · MCQ · EM Wave Energy: Ratio of electric to magnetic field contributions to EM wave intensity PDF
• Q.150 · MCQ · EM Wave Energy: Energy received by a surface from given light flux in one minute PDF

Dual Nature of Matter and Radiation

NEET2020

• Q.157 · MCQ · Photoelectric Effect: Photocurrent when frequency is halved and intensity doubled PDF
• Q.175 · MCQ · de Broglie Wavelength: Accelerating potential for an electron of given de Broglie wavelength PDF

Kinematics

NEET2020

• Q.177 · MCQ · Motion in One Dimension: Tower height from initial and final speeds of a ball thrown down PDF

Laws of Motion

NEET2020

• Q.160 · MCQ · Pulley Systems: Acceleration of 4 kg and 6 kg masses over a frictionless pulley PDF

Gravitation

NEET2020

• Q.143 · MCQ · Variation of g: Gravitational force on a body at height R/2 given surface weight PDF

Thermodynamics

NEET2020

• Q.141 · MCQ · Thermodynamic Processes: Nature of process when gas expands into an evacuated insulated cylinder PDF

Experimental Skills

NEET2020

• Q.146 · MCQ · Screw Gauge: Pitch of a screw gauge from least count and circular divisions PDF

Chemistry

Chemistry chapters by questions in each year. The last column is the total across the paper.

Most-asked Chemistry chapters: Classification of Elements and Periodicity (4), Organic Compounds Containing Oxygen (4), Chemical Bonding and Molecular Structure (3), Chemical Thermodynamics (3), Solutions (3).

Classification of Elements and Periodicity

NEET2020

• Q.96 · MCQ · IUPAC Nomenclature of Elements: Incorrect match of temporary and official names of elements PDF
• Q.122 · MCQ · s-Block Elements: Metal ion that activates enzymes and transmits nerve signals with Na PDF
• Q.130 · MCQ · Hydrogen: Match syngas, hard water, B2H6, H2O2 with descriptions PDF
• Q.131 · MCQ · Nature of Oxides: Match oxides CO, BaO, Al2O3, Cl2O7 with acidic/basic nature PDF

Organic Compounds Containing Oxygen

NEET2020

• Q.95 · MCQ · Preparation of Aldehydes: Identify intermediate X when toluene is converted to benzaldehyde PDF
• Q.100 · MCQ · Grignard Reagent: Product of acetone with methylmagnesium chloride and hydrolysis PDF
• Q.107 · MCQ · Aldol Condensation: Name of benzaldehyde-acetophenone reaction in dilute NaOH PDF
• Q.135 · MCQ · Ethers: Products of cleavage of anisole with HI PDF

Chemical Bonding and Molecular Structure

NEET2020

• Q.91 · MCQ · Molecular Orbital Theory: Identify the molecule that does not exist (He2, Li2, C2, O2) PDF
• Q.97 · MCQ · Solid State: Atomic radius of a bcc element from its cell edge PDF
• Q.98 · MCQ · Dipole Moment: Set of molecules that all have zero dipole moment PDF

Chemical Thermodynamics

NEET2020

• Q.94 · MCQ · Gibbs Energy: Standard Gibbs energy of sucrose hydrolysis from its Kc PDF
• Q.104 · MCQ · First Law: q, ΔT and w for adiabatic free expansion of an ideal gas PDF
• Q.127 · MCQ · Enthalpy and Entropy: Signs of ΔH and ΔS for 2Cl(g) forming Cl2(g) PDF

Solutions

NEET2020

• Q.105 · MCQ · Colligative Properties: Freezing point depression of a benzene solution of given molality PDF
• Q.115 · MCQ · Raoult's Law: Mixture showing positive deviation from Raoult's law PDF
• Q.128 · MCQ · Colloids: Property of colloids determined by measuring zeta potential PDF

Redox Reactions and Electrochemistry

NEET2020

• Q.99 · MCQ · Electrolysis: Anode product in electrolysis of dilute H2SO4 with Pt electrodes PDF
• Q.106 · MCQ · Faraday's Laws: Faradays needed to deposit 20 g calcium from molten CaCl2 PDF
• Q.125 · MCQ · Oxidation Number: Change in carbon oxidation number in chlorination of methane PDF

p-Block Elements

NEET2020

• Q.93 · MCQ · Carbon Family: Correct statements about CO2, C60, ZSM-5 and CO PDF
• Q.101 · MCQ · Oxoacids of Sulphur: Oxoacid of sulphur containing a peroxide linkage PDF
• Q.120 · MCQ · Carbon Monoxide: Incorrect statement about carbon monoxide and carboxyhaemoglobin PDF

d- and f-Block Elements

NEET2020

• Q.103 · MCQ · Magnetic Moment: Spin-only magnetic moment of Cr2+ PDF
• Q.111 · MCQ · Metallurgy: Correct statement about wrought iron, blister copper, refining PDF
• Q.126 · MCQ · Transition Metals: Incorrect statement about transition metals and their compounds PDF

Hydrocarbons

NEET2020

• Q.119 · MCQ · Polymers: Identify the natural polymer PDF
• Q.133 · MCQ · Ozonolysis: Alkene structure that gives methanal on ozonolysis PDF
• Q.134 · MCQ · Wurtz Reaction: Alkane that cannot be made in good yield by Wurtz reaction PDF

Some Basic Concepts in Chemistry

NEET2020

• Q.110 · MCQ · Partial Pressure: Partial pressure of N2 in an N2-Ar mixture of known masses PDF
• Q.123 · MCQ · Mole Concept: Which 1 g sample (Ag, Mg, O2, Li) has the most atoms PDF

Equilibrium

NEET2020

• Q.92 · MCQ · Solubility Product: Solubility of Ni(OH)2 in 0.1 M NaOH from its ionic product PDF
• Q.118 · MCQ · Common Ion Effect: Compound that crystallises when HCl is passed into chloride solution PDF

Chemical Kinetics

NEET2020

• Q.109 · MCQ · Collision Theory: Quantity that changes when reactant concentration increases PDF
• Q.132 · MCQ · First Order Reactions: Time to reduce reactant from 2.0 g to 0.2 g given rate constant PDF

Coordination Compounds

NEET2020

• Q.116 · MCQ · Spectrochemical Series: Increasing field strength order of SCN-, F-, C2O4 2-, CN- PDF
• Q.129 · MCQ · Complex Formation: Identify deep blue complex formed via urea hydrolysis products PDF

Organic Compounds Containing Nitrogen

NEET2020

• Q.102 · MCQ · Tests for Amines: Amine that gives the carbylamine test PDF
• Q.113 · MCQ · Chemistry in Everyday Life: Identify the cationic detergent PDF

Biomolecules

NEET2020

• Q.117 · MCQ · Amino Acids: Identify the basic amino acid PDF
• Q.121 · MCQ · Carbohydrates: Products of sucrose hydrolysis with anomeric forms PDF

Atomic Structure

NEET2020

• Q.124 · MCQ · Subatomic Particles: Numbers of protons, neutrons and electrons in Lu-175 PDF

Purification and Characterisation of Organic Compounds

NEET2020

• Q.108 · MCQ · Chromatography: Type of chromatography that paper chromatography represents PDF

Some Basic Principles of Organic Chemistry

NEET2020

• Q.112 · MCQ · Carbocation Stability: Reason tertiary butyl carbocation is more stable than secondary PDF

Organic Compounds Containing Halogens

NEET2020

• Q.114 · MCQ · Elimination Reactions: Correct descriptions of 2-bromopentane elimination to pent-2-ene PDF

Biology

Biology chapters by questions in each year. The last column is the total across the paper.

Most-asked Biology chapters: Human Physiology (12), Genetics and Evolution (12), Cell Structure and Function (10), Plant Physiology (10), Biotechnology and Its Applications (9).

Human Physiology

NEET2020

• Q.19 · MCQ · Transport of Gases: Wrong statement about oxygen binding and transport by haemoglobin PDF
• Q.24 · MCQ · Breathing Mechanism: Correct events that occur during inspiration PDF
• Q.47 · MCQ · Digestive System: Correct statement about the human digestive system PDF
• Q.49 · MCQ · Excretory Disorders: Urine conditions indicative of diabetes mellitus PDF
• Q.59 · MCQ · Digestive Enzymes: Conversion that enterokinase helps bring about PDF
• Q.62 · MCQ · Sense Organs: Match ear parts (organ of Corti, cochlea, stapes) with descriptions PDF
• Q.68 · MCQ · Regulation of Kidney Function: Factor that helps prevent diuresis PDF
• Q.75 · MCQ · Cardiac Cycle: What the QRS complex of an ECG represents PDF
• Q.76 · MCQ · Blood Cells: Match WBC types with their functions PDF
• Q.80 · MCQ · Endocrine Disorders: Match endocrine glands with associated diseases PDF
• Q.81 · MCQ · Hormone Action: Correct statement about glucocorticoids, glucagon and insulin PDF
• Q.84 · MCQ · Skeletal System: Match floating ribs, acromion, scapula, glenoid cavity with features PDF

Genetics and Evolution

NEET2020

• Q.6 · MCQ · Multiple Alleles: Wrong statement about gene I controlling ABO blood groups PDF
• Q.8 · MCQ · Genetic Disorders: Match genetic disorders with their mode of inheritance PDF
• Q.33 · MCQ · Translation: First phase of translation PDF
• Q.38 · MCQ · Origin of Life: Gas mixture and temperature used in S.L. Miller's experiment PDF
• Q.39 · MCQ · Evidences of Evolution: Scientist who disproved embryological support for evolution PDF
• Q.44 · MCQ · Natural Selection: Examples of evolution driven by anthropogenic action PDF
• Q.61 · MCQ · Mendelian Inheritance: Number of true-breeding pea varieties Mendel selected as pairs PDF
• Q.67 · MCQ · Transcription: Enzyme that opens the DNA helix during transcription PDF
• Q.73 · MCQ · Evidences of Evolution: Penguin and dolphin flippers as an example of which process PDF
• Q.74 · MCQ · DNA Structure: Length of DNA from base-pair count and spacing PDF
• Q.77 · MCQ · DNA Structure: Number of hydrogen bonds between adenine and thymine PDF
• Q.83 · MCQ · Chromosomal Theory: Scientist who experimentally verified the chromosomal theory PDF

Cell Structure and Function

NEET2020

• Q.11 · MCQ · Biomolecules: Substances with glycosidic and peptide bonds respectively PDF
• Q.14 · MCQ · Cell Cycle: Correct statement about the G1 phase of interphase PDF
• Q.16 · MCQ · Cell Organelles: Incorrect statement about inclusion bodies in prokaryotes PDF
• Q.17 · MCQ · Cell Organelles: Organelle that forms glycoproteins and glycolipids PDF
• Q.30 · MCQ · Biomolecules: Match ricin, malonate, chitin, collagen with descriptions PDF
• Q.52 · MCQ · Meiosis: Match prophase I substages with their events PDF
• Q.72 · MCQ · Cell Cycle: Phase at whose end cells exit into the quiescent G0 stage PDF
• Q.79 · MCQ · Biomolecules: Identify the basic amino acid PDF
• Q.82 · MCQ · Biomolecules: Most abundant protein in animals PDF
• Q.86 · MCQ · Meiosis: Prophase I stage in which the synaptonemal complex dissolves PDF

Plant Physiology

NEET2020

• Q.2 · MCQ · Plant Growth: Phase of growth during which growth rate is maximum PDF
• Q.13 · MCQ · Nitrogen Fixation: Products of the nitrogenase-catalysed reaction in root nodules PDF
• Q.28 · MCQ · Mineral Nutrition: Match essential elements (Fe, Zn, B, Mn) with functions in plants PDF
• Q.40 · MCQ · Water Relations: Process causing guttation from grass blade tips at night PDF
• Q.41 · MCQ · Secondary Metabolites: Purpose of secondary metabolites like nicotine and caffeine PDF
• Q.42 · MCQ · Photorespiration: Products of RuBisCO oxygenation in photorespiration PDF
• Q.64 · MCQ · Plant Growth Regulators: Growth regulator that increases sugarcane stem length PDF
• Q.65 · MCQ · Photosynthesis: Electron transfer step facilitated by plastoquinone PDF
• Q.66 · MCQ · Seed Dormancy: Which substance is not an inhibitor governing seed dormancy PDF
• Q.85 · MCQ · Respiration in Plants: Substrate-level phosphorylations in one turn of the citric acid cycle PDF

Biotechnology and Its Applications

NEET2020

• Q.7 · MCQ · Enzymes in rDNA: Choose correct pairing of DNA enzymes (ligase, nucleases) with functions PDF
• Q.18 · MCQ · Gel Electrophoresis: How separated DNA fragments are visualised after gel electrophoresis PDF
• Q.21 · MCQ · Restriction Enzymes: Palindromic sequence recognised by EcoRI PDF
• Q.22 · MCQ · Restriction Enzymes: Wrong statement about restriction enzymes PDF
• Q.27 · MCQ · Biotech Applications: Match organisms (Bt, Thermus, Agrobacterium) with biotech uses PDF
• Q.35 · MCQ · Biotech Applications: Incorrect statement about insulin and genetically engineered insulin PDF
• Q.43 · MCQ · Biotech Applications: What Bt cotton is resistant to PDF
• Q.55 · MCQ · Biotech Applications: Match Bt cotton, ADA deficiency, RNAi, PCR with applications PDF
• Q.78 · MCQ · Cloning Vectors: Vector sequence that controls copy number of linked DNA PDF

Diversity in the Living World

NEET2020

• Q.9 · MCQ · Animal Kingdom: Match animal features (gregarious pest, book lungs) with genera PDF
• Q.26 · MCQ · Animal Kingdom: True statements about phylum Chordata PDF
• Q.37 · MCQ · Animal Kingdom: Match fish features (gill slits, air bladder, poison sting) with groups PDF
• Q.50 · MCQ · Algae: Floridean starch is structurally similar to which polysaccharides PDF
• Q.53 · MCQ · Algae: Pick the pair of unicellular algae PDF
• Q.57 · MCQ · Viroids: Correct statement about viroids PDF
• Q.71 · MCQ · Plant Kingdom: Plant in which strobili or cones are found PDF
• Q.87 · MCQ · Animal Kingdom: Phylum of bilaterally symmetrical acoelomate animals PDF

Structural Organisation in Animals and Plants

NEET2020

• Q.3 · MCQ · Root Morphology: Name for roots arising from the base of the stem PDF
• Q.15 · MCQ · Animal Tissues: Location of cuboidal epithelium with brush border of microvilli PDF
• Q.20 · MCQ · Flower Morphology: Type of ovary present in ray florets PDF
• Q.25 · MCQ · Cockroach Anatomy: Why a cockroach survives a few days after its head is removed PDF
• Q.29 · MCQ · Secondary Growth: Incorrect statement about heartwood and sapwood PDF
• Q.36 · MCQ · Plant Anatomy: Identify plant part from T.S. features (scattered bundles, sheath) PDF
• Q.58 · MCQ · Flower Morphology: Plant in which the ovary is half inferior PDF
• Q.89 · MCQ · Animal Tissues: Cell type from which goblet cells are modified PDF

Reproduction

NEET2020

• Q.5 · MCQ · Assisted Reproduction: Identify ART techniques that transfer embryos to help infertile females PDF
• Q.12 · MCQ · Sexual Reproduction in Plants: Plant parts containing two generations one within the other PDF
• Q.31 · MCQ · Oogenesis: When meiotic division of the secondary oocyte is completed PDF
• Q.51 · MCQ · Reproductive Health: Option listing only sexually transmitted diseases PDF
• Q.54 · MCQ · Menstrual Cycle: Hormone levels that trigger ovulation from the Graafian follicle PDF
• Q.63 · MCQ · Pollination: Pollination agent in water hyacinth and water lily PDF
• Q.70 · MCQ · Human Reproduction: Match placenta, zona pellucida, glands, Leydig cells with roles PDF
• Q.88 · MCQ · Ovule Structure: Point where the body of the ovule fuses with the funicle PDF

Ecology and Environment

NEET2020

• Q.1 · MCQ · Population Attributes: Pick the item that is not an attribute of a population PDF
• Q.32 · MCQ · Biodiversity: Global species diversity estimate according to Robert May PDF
• Q.34 · MCQ · Biodiversity: Region of the globe with the highest species diversity PDF
• Q.56 · MCQ · Environmental Issues: Purpose of the Montreal Protocol of 1987 PDF
• Q.60 · MCQ · Ecosystem: Match trophic levels with grassland species examples PDF
• Q.69 · MCQ · Ecosystem Productivity: Correct relation between gross and net primary productivity PDF
• Q.90 · MCQ · Environmental Issues: Cause of snow-blindness in Antarctic regions PDF

Biology and Human Welfare

NEET2020

• Q.4 · MCQ · Human Diseases: Match diseases (typhoid, pneumonia, filariasis, malaria) with pathogens PDF
• Q.10 · MCQ · Human Diseases: Infective stage of Plasmodium that enters the human body PDF
• Q.23 · MCQ · Microbes in Sewage Treatment: What is put into the anaerobic sludge digester PDF
• Q.45 · MCQ · Immunity: Wrong statement about active and passive immunity PDF
• Q.46 · MCQ · Animal Breeding: Breeding method used to develop Hisardale sheep PDF
• Q.48 · MCQ · Microbes in Human Welfare: Match microbes with their commercial products PDF

How we tagged the papers

• Source: only official NEET papers published by the conducting body and hosted on our year pages. 2020: code E1.
• Chapters: one chapter per question, using the units of the official NTA NEET (UG) syllabus. A question that spans two units is filed under the one it mainly tests.
• Answers: shown only where an official key is hosted.
• Summaries are ours, so you can scan a chapter quickly. Open the official PDF for the full question.

Not included:

• 2016–2019, 2021–2026: we host no official question paper for these years, only final answer keys where they were published, so there are no questions to tag. NEET 2020 code E1 is the only official question paper on this site, so this page covers that paper alone. We do not use memory-based or coaching copies.

FAQ

Which NEET chapters have the most questions?

Physics: Current Electricity (5), Electrostatics (4), Optics (4). Chemistry: Classification of Elements and Periodicity (4), Organic Compounds Containing Oxygen (4), Chemical Bonding and Molecular Structure (3). Biology: Human Physiology (12), Genetics and Evolution (12), Cell Structure and Function (10). Counts are totals across the 1 official NEET paper tagged here.

Which NEET papers are included?

Only official papers that the conducting body published and that we host: 2020: code E1. Years without an official paper, or whose text could not be read reliably, are left out and listed in the method section.

Are the answers official?

No. The NEET 2020 final answer key is not hosted on this site, so the chapter lists show no answers. Check your attempt against NTA’s official key.