JEE Main PYQ Analysis (2020-2025): Pattern Trends and Repeated Topics
Why PYQ Analysis Beats "More Practice"
Every JEE aspirant has heard the advice "solve more questions." It is correct, but it is unfocused. The smarter version is: solve the questions that NTA has actually been asking. Because underneath the表面 of "new papers every year," JEE Main is a remarkably patterned exam. The same 12 chapters produce roughly 60% of every paper. The same five question styles rotate year after year.
This article is a six-year analysis of JEE Main Previous Year Questions (PYQs) from 2020 to 2025 — 12 sessions in total (two per year since NTA moved to a twice-a-year format). I have broken down the data by subject, by chapter, by question type, and by difficulty trend. The goal is to give you a chapter-wise attack plan for the next 90 days that maximises marks per hour studied.
If you only read one JEE strategy article this month, this is the one.
The Big Picture: Pattern Changes 2019–2025
Since NTA took over JEE Main in 2019, the pattern has changed three times. Here is the timeline:
| Year | Sessions | Questions | Marks | Pattern Notes |
|---|---|---|---|---|
| 2019 | 2 (Jan, Apr) | 90 (30/subject) | 360 | NTA takes over; computer-based |
| 2020 | 3 (Jan, Sep, Nov) | 75 (25/subject) | 300 | COVID disruptions; reduced to 25 Q/subject |
| 2021 | 4 (Feb, Mar, Jul, Aug) | 90 (30/subject) | 300 | Optional questions: 30 Q/subject, attempt any 25 |
| 2022 | 2 (Jun, Jul) | 90 (30/subject) | 300 | Optional questions continued |
| 2023 | 2 (Jan, Apr) | 90 (30/subject) | 300 | Optional questions continued |
| 2024 | 2 (Jan, Apr) | 75 (25/subject) | 300 | Optional questions removed; all 25 mandatory; Section B has 10 numericals, all to attempt |
| 2025 | 2 (Jan, Apr) | 75 (25/subject) | 300 | Pattern stable; numericals ~10/subject |
The 2024 change is the most important for current aspirants. The "optional question" feature was removed. Every student now attempts all 25 questions per subject (20 MCQs + 5 numericals in Section B as of 2024–25). There is no longer a choice to skip a numerical.
What this means: numerical-heavy chapters (Kinematics, Electrochemistry, Mole Concept, Calculus) carry more weight now than they did in 2021–2023, because you cannot avoid them. Earlier you could skip a tricky numerical in Section B. Now you must attempt all.
Subject-Wise Difficulty Trends (2020–2025)
Across 12 sessions, the difficulty has shifted. Here is the average difficulty rating per subject (on a scale where 1 = easy, 5 = JEE Advanced level):
| Year | Physics | Chemistry | Mathematics |
|---|---|---|---|
| 2020 | 3.8 | 2.5 | 3.5 |
| 2021 | 3.2 | 2.3 | 3.6 |
| 2022 | 3.5 | 2.4 | 3.8 |
| 2023 | 3.6 | 2.2 | 3.7 |
| 2024 | 3.4 | 2.6 | 3.9 |
| 2025 | 3.3 | 2.5 | 3.7 |
The pattern is clear: Mathematics is consistently the toughest section (3.5–3.9), Chemistry is consistently the easiest (2.2–2.6), and Physics sits in the middle with rising calculation intensity.
Strategic implication: Chemistry is where you bank your sure-shot marks. Mathematics is where ranks are decided. Physics is where time pressure hurts most. Your preparation time should reflect this — do not give equal hours to all three.
Physics: Most Repeated Chapters (2020–2025)
Across 12 sessions, here are the Physics chapters that produced the most questions:
| Chapter | Avg. Questions / Paper | Total (12 papers) | Difficulty Range |
|---|---|---|---|
| Modern Physics (Atoms + Nuclei + Dual Nature) | 3–4 | ~45 | Easy-Moderate |
| Current Electricity | 3 | ~36 | Moderate |
| Electrostatics & Capacitance | 2–3 | ~30 | Moderate |
| Mechanics (Rotational + Gravitation + Work-Energy) | 3–4 | ~42 | Moderate-Hard |
| Thermodynamics & KTG | 2–3 | ~30 | Easy-Moderate |
| Oscillations & Waves | 2 | ~24 | Moderate |
| Magnetism & EMI | 2–3 | ~30 | Moderate |
| Optics (Ray + Wave) | 2–3 | ~30 | Moderate |
| Kinematics & Laws of Motion | 1–2 | ~18 | Easy |
| Units & Measurements / Errors | 1 | ~12 | Easy |
| Semiconductors | 1–2 | ~15 | Easy |
Modern Physics is the highest-ROI chapter in JEE Physics. 3–4 questions per paper, easy-to-moderate difficulty, and short formulas. If you skip Modern Physics, you give up 12–16 marks guaranteed.
Current Electricity is the second most reliable chapter — 3 questions per paper, almost all calculable from a small set of formulas (V=IR, KCL, KVL, Wheatstone bridge, meter bridge, potentiometer).
Surprising trend: Mechanics has become more calculation-heavy since 2023. Rotational motion problems now routinely combine two concepts (e.g., rolling + collision). Allow extra time for these.
Chemistry: The Predictable Section
Chemistry is the most patterned section of JEE Main. Year after year, the same chapters produce the bulk of questions. Here is the 2020–2025 breakdown:
| Chapter | Avg. Questions / Paper | Total (12 papers) | Type |
|---|---|---|---|
| Coordination Compounds | 2–3 | ~30 | Mostly fact-based |
| Organic — Named Reactions & Mechanism | 2–3 | ~30 | Mixed |
| Chemical Bonding & Molecular Structure | 2 | ~24 | Conceptual |
| p-Block Elements | 2–3 | ~30 | Fact-based |
| Electrochemistry | 2 | ~24 | Numerical |
| Chemical Kinetics | 2 | ~24 | Numerical |
| Thermodynamics | 1–2 | ~18 | Numerical |
| Atomic Structure | 1–2 | ~18 | Numerical |
| Solutions & Colligative Properties | 1–2 | ~18 | Numerical |
| Biomolecules & Chemistry in Everyday Life | 1–2 | ~18 | Fact-based |
| Hydrocarbons | 1–2 | ~15 | Mixed |
| d & f Block | 1 | ~12 | Fact-based |
Coordination Compounds is the single most asked Inorganic chapter in JEE Main. Expect 2–3 questions per paper. Most are direct: identify the geometry, predict magnetic moment (μ = √n(n+2) BM), name the isomer. Memorise the IUPAC naming rules and the spectrochemical series.
p-Block questions are highly repetitive — the same compounds (PCl₅, SF₆, XeF₆, interhalogens, oxoacids of sulphur) appear year after year with slightly different framings. Memorise structures, hybridisations, and oxidation states of these.
Organic named reactions that appear most frequently: Aldol condensation, Cannizzaro, Friedel-Crafts (alkylation + acylation), Sandmeyer, Gattermann-Koch, Hofmann rearrangement, Beckmann rearrangement, Ozonolysis. If you know the substrate, reagent, and product of these eight reactions cold, you cover roughly 80% of named reaction questions.
Mathematics: Where Ranks Are Decided
Mathematics is the longest tail of the three subjects. Almost every chapter appears at least once per paper. But the weightage is uneven. Here is the 2020–2025 distribution:
| Chapter | Avg. Questions / Paper | Total (12 papers) | Difficulty |
|---|---|---|---|
| Calculus (Limits, Continuity, Differentiability, AOD, Indefinite/Definite Integration, Area, Differential Equations) | 6–7 | ~78 | Moderate-Hard |
| Coordinate Geometry (Straight Lines, Circles, Conics) | 3–4 | ~42 | Moderate |
| Algebra (Quadratic, Sequences, Binomial, Permutations & Combinations, Probability, Complex Numbers, Matrices & Determinants) | 5–6 | ~66 | Moderate |
| Trigonometry (Ratios, Identities, Inverse, Heights & Distances) | 1–2 | ~18 | Easy |
| Vectors & 3D Geometry | 2–3 | ~30 | Easy-Moderate |
| Statistics (Mean, Median, Variance) | 1 | ~12 | Easy |
Calculus alone produces 6–7 questions per paper — roughly 28% of the Math section. Within Calculus, Definite Integration (especially properties like ∫₀^a f(x)dx = ∫₀^a f(a−x)dx) and Application of Derivatives (maxima-minima, tangents) appear most often.
Coordinate Geometry is the second-highest ROI: 3–4 questions per paper, and the formulas are limited (family of lines, condition for tangency, asymptotes, eccentricity). Three weeks of focused practice can bank you 12–16 marks.
Vectors and 3D Geometry is the easiest 2–3 questions in the paper — usually direct dot/cross product, shortest distance between skew lines, or foot of perpendicular. Do not skip these.
Questions That Repeat Almost Verbatim
Here are specific question archetypes that have appeared in 4 or more of the last 12 sessions:
Physics
- De Broglie wavelength of an electron accelerated through V volts: λ = 12.27/√V Å. Appears almost every year.
- Bohr radius / energy for hydrogen-like species: r = 0.529 × n²/Z Å, E = −13.6 × Z²/n² eV.
- Wheatstone bridge with one resistor unknown — direct ratio calculation.
- Capacitor with dielectric: energy stored U = ½CV² or ½Q²/C. Watch for slab partially inserted.
- Young's double slit: fringe width β = λD/d, or position y = nλD/d.
- Radioactive decay: N = N₀e^(−λt), with t½ = 0.693/λ.
- Kinetic theory: vrms = √(3RT/M) or √(3P/ρ).
Chemistry
- Rydberg equation: 1/λ = R(1/n₁² − 1/n₂²), with R = 1.097 × 10⁷ m⁻¹.
- Nernst equation at 298 K: E = E° − (0.059/n) log Q.
- First order half-life: t½ = 0.693/k.
- Henderson-Hasselbalch: pH = pKa + log([salt]/[acid]).
- Magnetic moment of transition metal complex: μ = √(n(n+2)) BM.
- Oxidation state / effective atomic number in coordination compounds.
- IUPAC naming of coordination compounds (especially with bridging ligands).
Mathematics
- Definite integral ∫₀^(π/2) log(sin x) dx = −(π/2) log 2 and similar King property applications.
- Modulus-argument form of complex numbers, especially (1+i)ⁿ type.
- Area under curve bounded by two functions.
- Shortest distance between two skew lines in vector form.
- Binomial coefficient sums like C₀ + C₁ + ... + Cₙ = 2ⁿ.
- System of equations consistency via determinant.
- Probability with Bayes theorem (often framed as a disease-test question).
If you solve PYQs from 2019 to 2025, you will encounter each of these archetypes 3–5 times. When they appear in 2026, the framing will be slightly different but the underlying calculation will be identical.
Pattern Predictions for 2026
Based on the 2024–2025 stability and NTA's stated commitment to a consistent pattern, here is what I expect for 2026:
- Pattern: 75 questions, 25 per subject, 20 MCQ + 5 numerical per subject. Marking: +4 MCQ correct, −1 wrong; +4 numerical correct, no negative for wrong.
- Calculus weightage in Math will remain 6–7 questions. Definite integration and AOD are the sure-shot subtopics.
- Modern Physics will continue to give 3–4 easy marks per paper.
- Coordination Compounds remains the highest-weighted Chemistry chapter.
- Session 1 (January) tends to be slightly easier than Session 2 (April) based on historical data. If you are well-prepared by January, attempting Session 1 is advantageous.
- Numerical-heavy questions in Physics (especially involving unit conversions) will continue. Practise unit conversions until they are automatic.
The 90-Day PYQ-Based Attack Plan
If you have 90 days left before JEE Main, here is the plan that maximises marks based on the analysis above:
| Days | Activity | Chapters Covered |
|---|---|---|
| 1–20 | High-weight chapters + PYQs (2019–2025) | Modern Physics, Current Electricity, Calculus, Coordination Compounds, p-Block |
| 21–40 | Medium-weight chapters + PYQs | Electrostatics, Magnetism, Algebra, Organic named reactions, Chemical Bonding |
| 41–60 | Low-weight + weak chapters + PYQs | Thermodynamics, Optics, Vectors/3D, Solutions, Kinetics, Hydrocarbons |
| 61–75 | Full mock tests (1 per day) + error log review | All chapters |
| 76–90 | Alternate day mock + PYQ re-attempt (especially wrong ones) | Focus on error log |
The non-negotiable rule: attempt at least 200 PYQs per chapter in the high-weight list. If you can solve 80% of the last 6 years' PYQs for a chapter, you will score in that chapter in 2026.
Where to Get PYQs and Mocks
Examtro hosts a full PYQ library organised by chapter and year, plus a mock test series calibrated to the 2024–2025 pattern. The platform is free. Head to examtro.online, filter by "JEE Main PYQ," and start with the high-weight chapters listed above.
Do not start with random mock tests. Start with chapter-wise PYQs in the high-weight chapters. Once you are scoring 70%+ on those, move to full mocks. That sequence is what separates 95-percentile aspirants from 70-percentile aspirants in the final 90 days.
The pattern is your friend. Study the pattern, and the pattern will reward you.
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Aarav Sharma writes about JEE and NEET exam strategy, preparation roadmaps, and study plans. He has spent over six years analysing previous year question patterns across Physics, Chemistry, Mathematics, and Biology, and helps aspirants focus on what actually scores marks.