JEE Main Chemistry · Previous Year Questions
JEE Main Chemistry PYQ Chapter-Wise (2002–2025) with Solutions
Every JEE Main Chemistry question NTA has asked since 2002 — split across Physical, Organic and Inorganic, tagged by chapter, year and difficulty, with worked solutions and NCERT references. Chemistry is the most PYQ-driven subject in JEE Main: direct NCERT-line questions appear in every paper, and they are pattern-detectable in the last 5 years of PYQs.
If you want the fastest score gain in the 60 days before the exam, disciplined Chemistry PYQ practice is where it comes from. Score jumps of +15–20 in Chemistry from a +30-hour PYQ pass are common among our rank-500 users.
Chemistry Chapters with PYQ Coverage & Weightage
Weightage is the 10-year average share of Chemistry marks. The three branches (Physical, Organic, Inorganic) are almost equally weighted — you cannot skip a branch.
| Chapter | Weightage (approx) | Typical Questions |
|---|---|---|
| Some Basic Concepts (Mole Concept) | 4% | 1 |
| Atomic Structure | 3% | 1 |
| Chemical Bonding & Molecular Structure | 5% | 1–2 |
| States of Matter (Gases & Liquids) | 3% | 1 |
| Chemical Thermodynamics | 5% | 1–2 |
| Solutions | 4% | 1 |
| Chemical & Ionic Equilibrium | 5% | 1–2 |
| Redox & Electrochemistry | 5% | 1–2 |
| Chemical Kinetics | 4% | 1 |
| Surface Chemistry | 3% | 1 |
| Classification of Elements | 2% | 0–1 |
| General Principles of Isolation of Elements | 2% | 0–1 |
| Hydrogen & s-Block Elements | 3% | 1 |
| p-Block Elements (Groups 13 to 18) | 5% | 1–2 |
| d- and f-Block Elements | 4% | 1–2 |
| Coordination Compounds | 5% | 1–2 |
| Environmental Chemistry | 2% | 0–1 |
| GOC & Isomerism | 6% | 2 |
| Hydrocarbons (Alkanes, Alkenes, Alkynes, Benzene) | 4% | 1 |
| Haloalkanes & Haloarenes | 3% | 1 |
| Alcohols, Phenols & Ethers | 4% | 1 |
| Aldehydes, Ketones & Carboxylic Acids | 5% | 1–2 |
| Amines & Diazonium Salts | 4% | 1 |
| Biomolecules | 3% | 1 |
| Polymers | 2% | 0–1 |
| Chemistry in Everyday Life | 2% | 0–1 |
| Practical Chemistry | 3% | 1 |
How to Practise Chemistry PYQs Effectively
- 1Start with Inorganic. Inorganic Chemistry is recall-heavy and directly NCERT-derived — PYQs give the fastest accuracy gains because the answers are one-step.
- 2Annotate the NCERT line. For every Inorganic PYQ, note the NCERT Class 11/12 line the question traces back to. This cements recall and reveals the phrasing NTA reuses.
- 3Move to Physical next. Thermodynamics, Equilibrium and Electrochemistry PYQs teach the formula substitutions NTA loves — solve 30 PYQs per chapter untimed, then 20 more timed.
- 4Organic last — but with mechanism drills. GOC, Hydrocarbons and Aldehydes/Ketones PYQs reveal the mechanism patterns (SN1/SN2, E1/E2, Markovnikov) NTA tests repeatedly. Don't skip mechanism writing.
- 5Finish with a timed full-subject Chemistry mock. 25 questions in 60 minutes — exam-day budget.
Why Chemistry PYQs Are Non-Negotiable
- Direct NCERT questions are unforgiving. You either know the line or you don't — PYQs reveal which lines NTA loves so you know what to memorise.
- High repeat rate in Inorganic. A large share of Inorganic questions reuse a prior year's template — pattern recognition is a free 8-mark boost.
- Formula mastery transfers. Physical Chemistry is the same 10 formulas in 20 disguises. PYQs train recognition.
- Mechanism reasoning compounds. Organic PYQs from the same mechanism family teach the reagent rules once and reuse them across dozens of questions.
Chapter Deep-Dives
Jump into a single chapter for focused PYQs, sub-topic breakdowns and common-mistake callouts.
Related JEE Main Practice
Frequently asked questions
What JEE Main Chemistry PYQs are available?
Chapter-wise Chemistry questions spanning 2002–2025, split roughly equally across Physical, Organic and Inorganic Chemistry. Every question is tagged with chapter, NCERT reference (where applicable), year, session and difficulty.
Which Chemistry chapters carry the most JEE Main weightage?
GOC & Isomerism (~6%), Chemical Bonding (~5%), Chemical Thermodynamics (~5%), Equilibrium (~5%), Electrochemistry (~5%), Coordination Compounds (~5%), p-Block (~5%) and Aldehydes/Ketones/Carboxylic Acids (~5%) are the top weightage chapters — together they carry ~40% of the Chemistry section.
Is NCERT enough for JEE Main Chemistry?
For Inorganic Chemistry, NCERT plus 5 years of PYQs is sufficient for 20+/25. For Organic, NCERT is a baseline — you need reaction-mechanism practice beyond NCERT, especially for Aldehydes/Amines. For Physical, NCERT plus solid numerical practice (using PYQs) covers it.
How should I balance Physical, Organic and Inorganic PYQs?
Roughly 1:1:1 by time. Physical PYQs are calculation-heavy so each takes longer; Inorganic PYQs are quick recall so you can churn through many. Budget 30 hours across 2 weeks for each branch.
Do Chemistry PYQs come with step-by-step solutions?
Every PYQ has a written solution. Organic PYQs include the reaction mechanism where relevant; Inorganic PYQs cite the NCERT line; Physical PYQs show the formula substitution and unit analysis.
How much score gain can I expect from a focused Chemistry PYQ pass?
Students who work through chapter-wise Chemistry PYQs consistently over 60 days commonly see +15 to +25 in Chemistry in subsequent mocks. The gain is front-loaded in Inorganic, middle in Physical, trailing in Organic.
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