JEE Main Chemistry Question Papers Previous Year

There are two question types in JEE Main exam. Multiple choice questions and numerical ability questions. In MCQ, every question has 4 options with only 1 correct answer. Select the correct option. In numerical ability question type, no options are there. Solve them and write answer using keyword and mouse.

Paper 1 has 75 questions where Physics Chemistry and Mathematics, each section has 25 questions. Out of 25 questions, 20 are MCQs and five are numerical value questions. You must answer all 5 numerical value-type questions. All 20 multiple-choice questions are compulsory. Complete all 75 questions in 3 hours.

Chapterwise weightage of class 11 and 12 topics in JEE Main are mentioned below:

• Physics: Current Electricity Waves AC, Magnetism, Laws of Motion Work, Power and Energy.
• Chemistry the high weightage topics are s and p block elements, Coordination compounds, Thermodynamics Gaseous state, Chemical bonding, Atomic structure, Polymers, Environmental Chemistry Organic Chemistry.
• Mathematics, the high weightage topics are Sequence and Series Vectors and 3D, Integral and Differential Calculus, Definite and Indefinite Integral.

NO, it is compulsory to attempt all questions in the JEE Main exam. The JEE Main exam has negative marking and candidates must answer only those questions for which they know the correct answer. Students must note that there are no minimum marks in JEE Main that students need to score. Students gets All India Rank based on the marks they secure in exam and gets admission based on that rank.

JEE Main counselling do have the provision of mock seat allotment. JoSAA will conduct a total of two rounds mock seat allotment where candidates can check which college they get based on the choice filled by them. Candidates after registering for the counselling have to enter their preferred choice of college and branch in the order of preference. The allotment of seats will be made on the basis of All India Rank and choices filled by the candidate.

JEE Main question paper is in English, Hindi and language selected when you filled application form. In total, JEE Main is in 13 languages and you can select any language out of available options. You cannot switch language of question paper during exam.

JEE Main mock tests are available online on nta.ac.in. Download these for free or you can also practice online. You can download JEE Main mock test papers for free from Shiksha page as well.

JEE Main 2026 exam pattern has been released by the NTA. As per exam pattern, the JEE Main Paper 1 (BE/B.Tech) exam will consist of 75 questions, 25 each from Physics Chemistry and Mathematics. Out of 25 questions, 20 will be MCQs and 5 will be NAV. Students need to answer all 75 questions. JEE Main paper 2A for B.Arch consists of 77 questions of which 25 are from Mathematics, 50 from General Aptitude and 2 from Drawing. In Paper 2B for BPlan total questions are 100 of which 25 are from Mathematics, 50 from General Aptitude and 25 from Planning.

The question paper will have no internal choices within questions and total duration of exam is 3 hours. 

Students who are preparing for JEE Main exam are advised to first cover the entire JEE Main syllabus. Covering only the high weightage chapters would decrease their chances of getting full/high score in JEE Main exam. Only after covering the entire syllabus, students can check most important chapters for JEE Mains.

Questions in JEE Mains exam is a blend of all the topics covered in the syllabus. However, there are some topics that are very much important and should be paid extra attentions while preparing for the exam. The list of important JEE Main topics are

Mathematics

• 3D Geometry
• Vector
• Applications of Derivatives
• Definite Integrals
• Limit, Cnntinuity and Differentiability

Physics

• Heat and Thermodynamics
• Electromagnetic Waves
• Ray & Wave Optics
• Kinematics
• Current Electricity
• Magnetism

Chemistry

• Electrochemistry
• Chemical Kinetics
• Thermodynamics
• p-block elements
• Chemical Bonding

Candidates should take JEE Main mock tests at least once a week. However, in the last month before exam, frequency should be increased to 3 to 4 mock exam per week.

Yes, JEE Main exam has negative marking. 1 mark is deducted for every incorrect answer.

Usually, in the JEE Mains computer-based exam, questions from maths are presented first, followed by Physics and Chemistry.

But candidates can appear for any section first, as per their preference.

Students can download JEE Main previous year question paper from Shiksha page. Candidates are provided JEE Main previous year question papers from the year 2014 to 2026. The papers can be downloaded as PDF and can be practised to prepare for the exam.

Yes, and in fact, in the JEE Main exam, the weightage of class 11 and topics is almost the same. Candidates have to study topics of both classes 11 and 12 with equal importance.

Best free mock tests for JEE Mains are previous year question papers. You can also practice NTA mock tests online at nta.ac.in. All mock tests are designed as per JEE Main syllabus and exam pattern.