JEE Main 2026 Chemistry covers 25 questions - 20 MCQs in Section A and 5 compulsory numericals in Section B - with negative marking in both sections from 2026. Download the last 10 years JEE Main Chemistry question papers with solutions below, then check the chapter wise weightage table to see where Physical, Organic, and Inorganic Chemistry marks actually come from.
Official website: jeemain.nta.nic.in
- JEE Main 2026 Session 1: January 22 to 31 | Session 2: April 2 to 10, 2026
- Chemistry section: 25 questions - 20 MCQs plus 5 numericals, all compulsory
- Marking: +4 for correct, -1 for wrong in both sections from 2026
- New in 2026: Section B numericals carry -1 negative marking - all 5 must be attempted
- In 2025, 14.75 lakh students registered across both sessions
JEE Main Chemistry Sample Papers 2026 - Download PDF
Solve these papers timed at 1 hour before moving to year-wise PYQs. Start with 2025 papers - they match the current Section B pattern with all 5 numericals compulsory.
| Sample Paper | PDF Download |
|---|---|
| JEE Main Chemistry Sample Paper 1 | Download PDF |
| JEE Main Chemistry Sample Paper 2 | Download PDF |
| JEE Main Chemistry Sample Paper 3 | Download PDF |
| JEE Main Chemistry Sample Paper 4 | Download PDF |
| JEE Main Chemistry Sample Paper 5 | Download PDF |
| JEE Main Chemistry Sample Paper 6 | Download PDF |
| JEE Main Chemistry Sample Paper 7 | Download PDF |
| JEE Main Chemistry Sample Paper 11 | Download PDF |
| JEE Main Chemistry Sample Paper 12 | Download PDF |
| JEE Main Chemistry Sample Paper 14 | Download PDF |
| JEE Main Chemistry Sample Paper 18 | Download PDF |
| JEE Main Chemistry Sample Paper 19 | Download PDF |
PDFs will be updated as new papers are added. Bookmark this page.
| Year | Sessions Available | Solutions | Source |
|---|---|---|---|
| 2025 | Session 1 plus Session 2 | Available | Collegedunia |
| 2024 | Session 1 plus Session 2 | Available | Collegedunia |
| 2023 | Session 1 plus Session 2 | Available | Collegedunia |
| 2022 | Session 1 plus Session 2 | Available | Collegedunia |
JEE Main Chemistry Exam Pattern and Marks Distribution 2026
Chemistry carries 25 questions and 100 marks. The paper is 3 hours with no separate section timer per subject.
- Section A: 20 MCQs - all compulsory, -1 for wrong
- Section B: 5 numerical value questions - all compulsory, -1 for wrong from 2026
- No calculator allowed - all numerical answers are clean integers or simple decimals
Note: Section B numericals carry -1 negative marking from 2026. Attempt all 5 with a calculated estimate rather than leaving any blank.
JEE Main Chemistry Sample Papers with Section B Pattern Change - Why 2023 to 2025 Papers Matter Most
Papers from 2023 to 2025 have exactly 5 compulsory numericals in Section B - the most accurate format for 2026 practice. Pre-2022 papers had a different Section B structure; use them for concept exposure, not format practice.
- Use 2025 Session 1 as your first benchmark - it is the closest match to 2026 difficulty
- Organic Chemistry questions from 2024 onward test mechanism reasoning, not just product identification
- Physical Chemistry numericals in 2024 and 2025 are multi-step - formula recall alone is not enough
JEE Main Chemistry Chapter Wise Weightage - High Scoring Topics to Focus in Sample Papers
Based on JEE Main Chemistry papers from 2020 to 2025. Inorganic Chemistry is fastest to score from - less calculation time than Physical Chemistry.
| Chapter | Questions | Difficulty | What to Watch For |
|---|---|---|---|
| Chemical Bonding and Molecular Structure | 2-3 | Easy-Moderate | VSEPR, hybridisation, bond angle comparisons |
| Coordination Compounds | 2-3 | Moderate | Naming, isomerism types, crystal field theory |
| p-Block Elements | 2-3 | Moderate | Oxoacids of sulphur and nitrogen, Group 15-17 |
| Thermodynamics and Thermochemistry | 2-3 | Moderate-Hard | Gibbs energy, entropy, Hess's law numericals |
| Aldehydes, Ketones and Carboxylic Acids | 2-3 | Moderate | Named reactions, nucleophilic addition, acidity |
| General Organic Chemistry and Isomerism | 2-3 | Moderate | Inductive and resonance effects, carbocation stability |
| Electrochemistry | 1-2 | Moderate-Hard | Nernst equation, EMF, conductance numericals |
| Chemical Kinetics | 1-2 | Moderate | Order of reaction, half-life, integrated rate laws |
Do not skip Hydrogen, s-Block, and Polymers - 2 to 3 questions combined, under 15 minutes to revise.
JEE Main Chemistry Sample Paper Video Solutions 2026 - Watch Before You Start Solving
This ALLEN Experts video covers the April 2025 Chemistry paper step by step - Physical Chemistry numericals, Organic mechanisms, and Inorganic one-liners. Watch it before your first paper to see what an ideal time split looks like.
Watch: JEE Main 2025 Chemistry Paper Solution by ALLEN Experts (April, Shift 2)
Channel: ALLEN JEE | Session: April 2025, Shift 2
How to Use JEE Main Chemistry Sample Papers to Hit 99 Percentile
Solving papers without reviewing wrong answers is why most students plateau at 90 percentile. The review is where rank improvement happens.
- Solve each paper in exactly 1 hour - average 3 minutes per question, strictly timed
- Sort every wrong answer into: concept gap, silly error, or time pressure
- For every concept-gap error, solve 5 similar questions from the same chapter that same day
- Track Section B numericals separately - note which calculation step caused the error
- Aim for 22 correct out of 25 in Chemistry to stay above 99 percentile
JEE Main Chemistry Section B Numerical Strategy - What Separates 90 and 99 Percentile Scorers
Section B Chemistry numericals come almost completely from Physical Chemistry - Electrochemistry, Chemical Kinetics, Thermodynamics, Mole Concept, and Solutions. All 5 carry -1 from 2026.
- Do a quick order-of-magnitude check first to eliminate obviously wrong choices
- Write units at every step - a unit mismatch tells you the formula is wrong before you finish
- Round off only at the final step, never midway through a multi-step problem
- If stuck after 90 seconds, move on and return - never leave a numerical blank
JEE Main Chemistry 30 Day Preparation Plan Using Sample Papers
- Week 1 - Solve 2025 Session 1 untimed. Mark every question you could not start in 30 seconds and note its chapter - that is your Week 2 revision list.
- Week 2 - Revise your three weakest chapters, then solve 2025 Session 2 timed at 1 hour. Count how many Section B numericals you finish under 3 minutes.
- Week 3 - Solve 2024 Session 1 and Session 2 on separate days. Review wrong answers the same evening and update your error log.
- Week 4 - One full timed paper daily. Stop new papers 2 days before the exam and revise only your error log.
FAQs on JEE Main Chemistry Sample Papers 2026
Ques. How many JEE Main Chemistry sample papers are enough to score above 99 percentile?
Ans. 15 to 20 full papers, paired with an error log. Solving 40 papers without reviewing wrong answers leads to a plateau around 90 percentile.
Ques. Which JEE Main Chemistry chapter gives the most marks for the least effort?
Ans. Chemical Bonding and Molecular Structure. It appears in 2 to 3 questions every session, overlaps with Coordination Chemistry, and returns 8 to 12 marks for moderate preparation.
Ques. Where can I download JEE Main Chemistry sample papers with answer key PDF for free?
Ans. Download from this page or from the Collegedunia JEE Main question paper section - all papers include answer keys and solutions.
Ques. Are JEE Main Chemistry questions repeated across sessions and years?
Ans. Exact questions are not repeated, but problem types recur. Electrochemistry and Chemical Kinetics especially show recurring setups - 5 to 7 years of papers gives you a consistent read.
Ques. Can I score 80 plus in JEE Main Chemistry in 30 days using sample papers?
Ans. Yes, if your conceptual base is in place. Sample papers sharpen what you know and expose gaps - use them alongside chapter revision, not instead of it.
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