JEE MAIN 2025 CHEMISTRY PATTERN
NATIONAL LEVEL ONLINE TEST
Table of Contents
JEE Main 2023 Chemistry Pattern, Marking Scheme, Total Marks, Weightage
As per JEE Main 2023 Chemistry exam pattern, there will be a total of 30 questions of which students will need to answer 25 questions. For this year, there has been an increase in the number of NAT questions for Chemistry section. Students will be provided with a total of 10 questions and they will have a choice of answering any five. Check JEE Main Chemistry Syllabus
| JEE Main 2023 Exam Centers | JEE Main 2023 Chapter-wise Weightage | JEE Main 2023 Cut off |
The Chemistry section consists of objective type questions from Physical Chemistry, Organic and Inorganic chemistry. Some of the important topics are Classification of Elements and Periodicity in Properties, Hydrogen, Organic Compounds containing Halogens, Purification and characterization of Organic compounds, Chemical Thermodynamics, Chemical Bonding and Molecular Structure, etc.
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JEE Main 2023 Chemistry Exam Pattern Highlights
| Features | Highlights |
|---|---|
| Mode of Exam | Computer Based Test (Online) |
| Marking Scheme | +4 for the correct answers and -1 for incorrect answer |
| Duration of Exam | 3 Hours |
| Language of Exam | Hindi, English and Gujarati (Only for centers in Gujarat, Daman and Diu, and Dadra and Nagar Haveli) |
| Types of Questions | Multiple Choice Questions (MCQs) and Numerical Value Based |
| Total Number of Questions | 30 (20+10) Questions |
| Total Marks | 100 |
Why is Knowledge of the exam pattern important?
- Understanding the JEE Main 2023 exam pattern is quite essential to have a good preparation for the entrance examination.
- The pattern brings to light the assessment time duration, type and number of questions that will appear in the exam, section-wise weightage, and the marks allotted to each topic.
- Even if a candidate is in the final phase of preparation, one should not forget the question paper pattern.
- Brushing up the major areas carefully will reduce stress and anxiety during the exam.
- Understanding the paper pattern goes along with attempting mock papers and can prepare you better for the real exam.
JEE Main 2023 Chemistry Exam Pattern Details
- JEE Main 2023 Mode of Examination: JEE Main 2023 will be conducted in Online mode only i.e. Computer-based Test.
- JEE Main 2023 Chemistry Syllabus: The Chemistry syllabus is divided into 3 sections: Physical Chemistry, Organic Chemistry, and Inorganic Chemistry. The Topics under all the three sections are included in JEE Main 2021 Chemistry Syllabus.
- JEE Main Marking Scheme: As per JEE Main 2023 Marking Scheme, candidates will be awarded 4 marks for each correct answer. 1 mark will be deducted for every wrong answer. There will be no negative marks for Numerical value based questions.
- JEE Main Exam Duration: Aspirants will get a total of 3 Hours to attempt 75 (Out of 90) questions. Practice with JEE Main Sample Papers.
- Medium of Question Paper: Candidates can choose to take exam in any of the three languages i.e. Hindi, English and Gujarati (Only for centers in Gujarat, Daman and Diu, and Dadra and Nagar Haveli).
JEE Main 2023 Chemistry Marking Scheme
- Candidates will get 4 marks for each correct answer.
- 1 mark will be deducted for every incorrect answer.
- Zero mark will be rewarded for unattempted questions.
- There will be no negative marks for Numerical value based questions.
- Candidates are advised not to fill more than one option in the OMR sheet. If they do so then that question will be considered incorrect and you will get negative marks.
| Subject | Total Marks | Number of Questions | Marking Scheme |
|---|---|---|---|
| Chemistry | 100 | 75 | +4 marks will be awarded for the correct answers -1 mark will be deducted for each incorrect response |
JEE Main 2023 Chemistry: Important Topics
For most of the aspirants, chemistry is the rank decider because it mostly talks about the basics and in comparison to the Mathematics and Physics questions asked in JEE Main, the Chemistry section is more theoretical than calculative which makes it relatively easier for students to score high in this section.
There are many chapters/topics that an aspirant must cover in Chemistry in order to score a better rank. Figuring out the important chapters/topics for JEE Main Chemistry is not a complicated task, and you can identify the same by referring to the previous years question papers of JEE Main.Check HereJEE Main 2023 Practice Paper
Moreover, in order to help the candidates, we have provided the list of important topics or chapters of JEE Main Chemistry section below:
1. Organic Chemistry
| Biomolecules and Polymers | Alcohol and Ethers | Chemistry in Action |
| Carbonyl Compounds | Carboxylic Acid and its Derivatives | Classification and Nomenclature |
| General Organic Chemistry | Haloalkanes | Haloarenes and Phenols |
| Hydrocarbons: Alkanes, Alkenes, and Alkynes | Isomerism | Nitrogen Compound and Aliphatic Amines |
| Practical and Environmental Chemistry | Ozonolysis | Grignard Reagent |
2. Inorganic Chemistry
| Chemical Bonding | Coordination Compounds | D-Block and F-Block Elements |
| Metallurgy | P-Block Elements Periodic Properties | Qualitative Analysis |
| S-Block Elements | Hydrogen and its Compounds | - |
3. Physical Chemistry
| Chemical Equilibrium | Atomic Structure | Chemical Kinetics |
| Electrochemistry | Gaseous State | Ionic Equilibrium |
| Mole Concept | Nuclear Chemistry | Redox and Volumetric Analysis |
| Solid State Solution (General and Colligative Properties) | Thermodynamics and Thermochemistry | - |
JEE Main 2023 Chemistry Chapter-wise Weightage
Based on the questions asked in previous years, we have tabulated the weightage of topics or chapters in Chemistry which are important for JEE Main 2023
1. Physical Chemistry
| Chapters | Average Number of questions | Weightage |
|---|---|---|
| Some Basic Concepts in Chemistry | 1-2 | 4-8% |
| States of Matter | 1 | 4% |
| Gaseous State | 0-1 | 0-4% |
| Solid State | 0-1 | 0-4% |
| Chemical Bonding and Molecular Structure | 1-3 | 4-12% |
| Equilibrium | 1-2 | 4-8% |
| Atomic Structure & Nuclear Chemistry | 0-2 | 0-8% |
| Surface Chemistry | 0-1 | 0-4% |
| Chemical Kinetics | 0-1 | 0-4% |
| Chemical Thermodynamics | 0-1 | 0-4% |
| Solutions & Colligative Properties | 0-1 | 0-4% |
| Redox Reactions and Electrochemistry | 0-1 | 0-4% |
2. Inorganic Chemistry
| Classification of Elements | 1-2 | 4-8% |
| P-Block | 0-1 | 0-4% |
| S-Block | 0-1 | 0-4% |
| D-Block & F-Block elements | 0-1 | 0-4% |
| Environmental Chemistry | 0-1 | 0-4% |
| Coordination Compounds | 2-3 | 8-12% |
| Metallurgy | 0-1 | 0-4% |
3. Organic Chemistry
| Some basic Principles of Organic Chemistry | 0-2 | 0-8% |
| Hydrocarbon | 2-3 | 8-12% |
| Alkyl Halide, Alcohol & Ether (Reaction Mechanism) | 1-3 | 4-12% |
| Aromatic Compounds | 0-1 | 0-4% |
| Biomolecules | 0-1 | 0-4% |
| Polymers | 0-1 | 0-4% |
| Chemistry in everyday life | 0-1 | 0-4% |
| Grignard Reagent, Reduction, Oxidation & Hydrolysis | 0-1 | 0-4% |
| Carboxylic Acid and its Derivatives | 0-1 | 0-4% |
| Principles related to Practical Chemistry | 0-1 | 0-4% |
| Total | 25 Questions | 100% |
JEE Main Chemistry Paper Analysis
- JEE Main aspirants found the Chemistry section easy amongst the other two sections and there were no difficult questions. =
- However, a few of them were tricky questions.
- Most of the questions asked in JEE Main Chemistry section were from NCERT textbooks, and there was more emphasis on Class 12th syllabus.
- Therefore, candidates appearing for the January 2023 session exam are advised to focus on Class 12th topics along with Class 11th topics.
Read How to Prepare for JEE Main 2023 Chemistry Paper
JEE Main 2023 Chemistry Sample Questions
Question: Wash and wear clothes are manufactured using
- Wool fibres
- Cotton mixed with nylon
- Nylon fibres
- Terylene fibres
Answer: (D) Terylene fibres
Question: A mixed solution of potassium hydroxide and sodium carbonate required 15 ml of a N/20 HCL solution when titrated with phenolphthalein as an indicator. But the same amount of the solution when titrated with methyl orange as an indicator required 25 ml of the same acid. Calculate the amount of KOH present in the solution.
- 0.24 g
- 0.038 g
- 0.014 g
- 5.4 g
Answer: (C) 0.014 g
Question: High density polyethylene (HDPE) can be prepared from ethylene by
- Condensing with styrenes
- Ziegler-Natta Process
- Heating with peroxides
- Condensing in sealed tubes
Answer: (B) Ziegler-Natta Process
Question: The elements of group IA provide a colour to the flame of Bunsen Burner due to
- Low ionization potential
- Softness
- Presence of one electron in the outermost orbit
- Low melting point
Answer: (A) Low ionization potential
Question: Which of the following is used as an antibiotic
- Tocopherol
- Paracetamol
- Ibuprofen
- Ciprofloxacin
Answer: (D) Ciprofloxacin
Question: Which of the following is not true for reserpine?
- Reserpine is a non-alkaloid
- Reserpine is a tranquilizer
- Reserpine is obtained from the plant Rauwolfia serpentina
- Reserpine is also known as serpasil
Answer: (A) Reserpine is a non-alkaloid
Click Here to download JEE Main Question Paper
What is Chemistry and its Scope?
Chemistry is one of the important subjects in JEE Main entrance examination. There are three sections in Chemistry i.e. Inorganic Chemistry, Organic Chemistry and Physical Chemistry. Generally in examination, theoretical questions are asked from this subject. It is a branch of science dealing with the study structure, composition and properties of matter. Moreover, It also deals with the study of the changes with different forms of matter under different conditions.
Scope of Studying Chemistry
There are many examples in your day-to-day life that involve chemistry, its application, and its rules. Few of them are mentioned below:
- The Scope of Chemistry in Supply of Food- The study of chemistry has provided chemical fertilizers such as calcium superphosphate, Ammonium Sulphate, Sodium Nitrate, Urea. It has helped farmers to protect the crops from insects and harmful bacteria by the use of certain effective insecticides. Chemistry has led to the discovery of preservatives.
- The Scope of Chemistry in Industry- Chemistry plays an important and useful role in the development and growth of a number of industries. For example: Cement, glass, textile, leather,etc. It has also helped in the greater production of nitric acid, sulphuric acid,and Ammonia.
- The Scope of Chemistry in saving the environment- We have environment friendly chemicals because of Science which helps us to Conserve the natural environment. For Example Replacement of CFCs in the refrigerator.
- The Scope of Chemistry in War- Chemistry plays a crucial role in the discovery of highly explosive substances such as Dynamite, Nitroglycerine and TNT. It also plays a role in finding poisonous gases like Phosgene, mustard gas, etc.
Also Read:JEE Main Chemistry Preparation Tips
Important Instructions for Candidates
- JEE Main 2023 Admit Card must be brought to the examination centre for verification with a minimum of one original and valid photo identification proof (Aadhar Card, Passport, College ID, PAN Card, Driver’s License, Voter ID, or Employer ID).
- Beverages and eatables will not be allowed inside the examination hall. Those aspirants who suffer from a medical condition were allowed to carry medicine.
- Candidates must report to the venue of examination 60 minutes before the scheduled time of examination.
- Candidates will be allowed to take the exam only if their credentials get verified by the officials of the examination centre.
- The Aspirants should not tamper with the computers provided to them in the hall.
- JEE Main 2023 Admit Card will be considered valid only if the candidate’s signature and photograph are clearly visible.
- After taking your seat, check the computer that has been allocated is in appropriate working condition.
- Confirm your photograph, which will show up on the screen on the right-hand upper corner of the screen.
- Read the important instructions, which will show up on the screen right after you sign into the account.
JEE Main Chemistry Exam Pattern FAQs
Question: How many questions will be there in the Chemistry section?
Ans. There will be 30 questions asked from the Chemistry section. Out of these candidates have to answer 25.
Question: Are there any sectional limits?
Ans. No, there is no sectional limit in JEE Main 2023. Candidates can dedicate as much time on a particular section.
Question: Will JEE Main Chemistry have a descriptive question?
Ans. According to JEE Main Chemistry Exam Pattern, the examination will only have Multiple Choice Questions (MCQs) and Numerical Value based Questions.
Question: How many marks will be deducted for unanswered questions in JEE Main Chemistry?
Ans. As per JEE Main Chemistry Paper Pattern, there will be no deduction of marks for unanswered questions. Such questions will not be taken into consideration while calculating the total marks of the candidate.
Question: What will be the marking scheme in JEE Main Chemistry Paper?
Ans. The candidates will be awarded +4 marks for each correct response whereas, -1 will be deducted for every incorrect answer.
JEE Main 2025 : 51 Answered QuestionsView All
Ans. You are considering pursuing either mechanical engineering or electrical engineering. We highly recommend you consider GNE Ludhiana. The Amritsar Campus of GNDU only offers three B.Tech streams: Computer Science, Electronics and Communication, and Urban Planning. However, the mechanical and civil engineering streams are available at the regional campus of Sathiala and were established in the 2014 batch. The faculty for Computer Science and Electronics at GNDU is exceptional. However, it is important for you to research placement statistics and other relevant information before making a final decision. If your rank is 77k, there may be a slight chance for you to get into mechanical engineering at GNE. However, there is an option for you to change streams after one year if there are any vacant seats in your preferred department. Read more
Ans. Comparing competitive exams or choosing one over the other is a very illogical thing to do. The entire agenda behind a competitive exam is to build your knowledge and test you on the basis of the same. So unless you defer from gaining the right set of knowledge, any competitive exam will bear the same result. I have a very effective technique to tackle this issue. Prepare in such a way that you are appearing for JEE Advanced. This is because the course and structure of Advanced are such that once you are ready to clear that, you can clear every other exam too. This means your focus will not be divided and all you can do is focus on one exam. Keep focusing on the preparation for JEE Advanced and when your BITSAT is around the corner start solving mock tests to improve your speed. Prepare additionally for English and Logical Reasoning questions. BITSAT focuses more on your speed than the clarity of your concepts. So a mere preparation of 3 months before BITSAT is more than enough provided that your concepts are clear from JEE Advanced preparation. The short video below will explain the core differences between JEE and BITSAT So instead of choosing one single exam, prepare for JEE Advanced and target both as the future is unpredictable. Read more
Ans. A score of 250 out of 360 in Mains is difficult but not impossible. Your performance depends on your capacity to grasp concepts and your former knowledge. For some, it might be a cakewalk while for some it might be an unattainable number despite the relentless effort. The syllabus is elaborate so one should have a lot of time to prepare. If you are serious about scoring 250 follow the simple tips I have mentioned below Aim for a score that is higher than 250 and then only after tremendous efforts will you be able to touch the 250 mark. Choose a wise mentor who will guide you throughout your exam preparation. Continuous revision will do wonders for your preparation. Even if you are confident in a certain topic, keep revising so that the flow is not broken. Work on your weaknesses rather than ignoring them. My friend had joined the Filo-app. One-to-one sessions with tutors helped her a lot in making her understand and practice Math concepts. Take mock tests regularly, about once or twice a week. This helps you identify the areas you need to work on and prepares you well. Lastly, you need to stay optimistic as this journey you have embarked on is tough and requires a lot of determination and motivation. Take care of your health, both physical and mental. Read more
Ans. NCERT books can help a lot to prepare for JEE Mains Chemistry. But it is not sufficient. Inorganic Chemistry is the most scoring part. And for this section, NCERT books are a must. In past years there were questions directly from NCERT. But read your class notes and textbooks as well. For Physical and Inorganic Chemistry, NCERT isn’t enough. You need to practice a lot, in order to have a good command of these sections. For these sections, go through the NCERT, make notes for important sections and solve practice series. Read more
Ans. You need to have a higher rank if you want a decent NIT and a good branch. Here is an estimated list of cutoffs for a few reputed NITs. Institute Estimated Cutoff (General category) NIT Warangal 1000 - 7000 NIT Trichy 500 - 5000 NIT Surathkal 300-5000 NIT Jaipur 1200-8000 NIT Allahabad 500-10000 These are approximate opening and closing ranks and the cutoff for these institutes varies each year. Read more
Ans. Before choosing the best book I think it is very important to know your syllabus. Only then you can identify your weak and strong points from the syllabus and focus more on your weaknesses. The most important topics that are covered are Mole Concept Atomic Structure Periodicity Chemical and Molecular Bonding States of Matter Electrochemistry and Redox reactions Chemical and Ionic Equilibrium General Organic Chemistry Hydrogen Solutions and Colligative Properties Chemical Kinetics Coordination compounds P block, D&F block elements Metallurgy You can start preparing for these topics from class 11 itself. The books that are considered Bibles of Chemistry and are highly recommended for JEE Main and JEE Advanced aspirant include Modern Approach to Chemical Calculations: This book by RC Mukherjee is the best book out there for Physical Chemistry Numerical Chemistry: This book by P Bahadur is recommended by many top tankers Organic Chemistry: This book by Robert Thornton Morrison is the best book for Organic Chemistry. Concise Organic Chemistry: This book by JD Lee is a great book for inorganic chemistry. It will make you fall in love with the subject rather than rote learning. Other than books you can resort to Video lectures, question papers, and a doubt solving forum. Most importantly Chemistry is a subject that requires tremendous concentration and consistency. You can go for frequent mock tests to test your knowledge. Read more
Ans. To join a reputed college, Indian students are required to give JEE-Main and JEE-Advanced. Cracking these exams with a top rank gives you the opportunity to join top National Institutes of Technology (NITs) and Indian Institutes of Technology (IITs). Admission into such reputed colleges, kickstart your Engineering career. Although both JEE-Main and JEE-Advanced are Engineering entrance exams, both have severe dissimilarities. The aspects of these dissimilarities have been discussed below. Level of difficulty: JEE-Advanced is far more difficult than JEE-Main. The primary focus of JEE-Main is to evaluate the candidates' knowledge of their class 11th and 12th syllabus while JEE-Advanced is taken to evaluate the analytical and problem-solving skills of the students. Syllabus: The JEE Main syllabus is similar to the one prescribed by CBSE whereas JEE-Advanced has a different syllabus. Various topics covered in JEE Main are not included in JEE Advanced. Eligibility: A good JEE Main rank will open doors for admission to NITs and IITs. But with a good JEE Advanced rank, one can get admitted into the most coveted IITs. Qualification: JEE Main required a student to have completed his Class 12th only. Whereas JEE Advanced has set certain minimum cutoff criteria in JEE Main and also meets minimum board exam criteria. Examination pattern: JEE Main exam comprises one paper only while JEE Main comprises 2 papers. The former consists of objective and single-answer questions while the latter consists of a variety of problems including multi-right, matrix match, comprehension types, and much more. The pattern of the former hardly changes while the pattern of the latter is modified every year. I hope such a detailed comparison has cleared your doubts and clarified the doubts regarding both the entrance exams. Read more
Ans. One of my juniors took JEE Main 2022. His examination was on 25th June, the 2nd shift. For him, the examination paper wasn’t too difficult. Physics was the easiest for him. He found the Mathematics section to be lengthy. The Chemistry section was a bit difficult for him. According to provisional answer key, he was getting around 187 marks. He was expecting 98 percentile. He scored 99.04 percentile. Read more
Ans. Many seem to believe NTA has ruined JEE Main. There had been controversies regarding the percentile system. Students with higher scores got lower percentile and vice versa. Also, as the examination is done on different shifts and with different sets of questions, students seem to believe there is a huge luck factor at play. The normalization process isn’t full proof. The difficulty level of question papers is subjective and can’t be normalized. Read more
Ans. NCERT books are a good place to start the preparation for Organic Chemistry. But you shouldn’t rely on NCERT solely. Once you are through NCERT books, study standard reference books such as O.P. Tandon & A.K. Virmani, and Himanshu Pandey. Organic Chemistry is extensive and NCERT books usually cover only the basic formulas. It’s good for clearing concepts but you will fall behind in competition if you are only following NCERT. Read more
*The article might have information for the previous academic years, which will be updated soon subject to the notification issued by the University/College
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