Wanna know the subject-wise exam weightage and expected important topics for the IIT JAM 2025 examinations? Check out this article to get insight into the number of questions that are expected to be asked from the various topics of the IIT JAM 2025 syllabus. Test takers can also find the JAM 2025 subject wise important topics and IIT JAM syllabus, important book links here on this page.
IIT JAM 2025 Subject Specific Exam Weightage; Check Important Topics, Syllabus, Books Details Here
IIT Delhi, the examination conducting body of IIT JAM for the academic session 2025-2025 will be conducting the JAM 2025 exam on February 2, 2025, at various IIT JAM exam centres located across the nation. Aspirants who have gone through the JAM 2025 Syllabus and examination pattern are more likely to outperform. As this is one more the most important parts of the JAM 2025 preparation strategy, test takers should also check or analyse the chapter/ topic weightage of the subject code that they are preparing for. IIT JAM Subject-wise weightage analysis will ace the preparation level and be considered to be a smart move by the candidates.
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The objective of IIT JAM 2025 chapter-wise weightage is to provide students with an idea of the relative importance of different chapters in the syllabus. This information can be used by students to prioritize their studies and focus on the topics that are most likely to be tested in the exam.
Q: How many subjects are there in IIT JAM 2025 examination?
There are 7 subjects in the IIT JAM 2025 examination:
* Biotechnology (BT)
* Chemistry (CY)
* Economics (EN)
* Geology (GG)
* Mathematical Statistics (MS)
* Mathematics (MA)
* Physics (PH)
Students can choose to appear for one or more subjects, depending on their interests and eligibility. The exam is conducted in a computer-based mode and consists of 60 questions for 100 marks.
Q: What type of questions does Section B of IIT JAM exam have?
JAM 2025 Examination will be conducted in SEVEN subjects, also referred to as Test Papers; Biotechnology (BT), Chemistry (CY), Economics (EN), Geology (GG), Mathematics (MA), Mathematical Statistics (MS), and Physics (PH). The medium for all the Test Papers is English only.
JAM 2025 examination pattern is divoded in such a way that the exam will be conducted in the form of three sections ie., Section A, B and C.
Section - B contains a total of 10 Multiple Select Questions (MSQs) carrying two marks each. Each MSQ is similar to MCQ but with the difference that MSQ may have one or more than one correct choice (s) out of the four given choices. The candidate is awarded full credit only if all the correct answer (s) and no wrong answers are selected. Candidates can mark the answer (s) by clicking the choice (s). There is no negative marking or partial marking for MSQ.
Q: What is the format of the IIT JAM exam, and what types of questions can candidates expect?
The IIT JAM exam is a computer-based test (CBT) consisting of 60 questions for 100 marks. The exam is divided into three sections:
- Section A: This section consists of 30 multiple-choice questions (MCQs) of 1 and 2 marks each.
- Section B: This section consists of 10 multiple-select questions (MSQs) of 2 marks each.
- Section C: This section consists of 20 numerical answer type (NAT) questions of 1 and 2 marks each.
Candidates can expect a variety of questions in the IIT JAM exam, covering the entire syllabus of the chosen subject. The questions are typically designed to test the candidate's conceptual understanding, problem-solving skills, and analytical abilities.
The chapter-wise weightage is based on the number of questions asked from each chapter in previous years' exams. However, it is important to note that the weightage can vary from year to year, so students should not rely solely on the weightage to determine their study plan. The chapter-wise weightage can also be used by students to identify their strengths and weaknesses. For example, if a student finds that they are weak in a particular chapter, they can spend more time studying that chapter.
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To gain in-depth knowledge about subject-specific exam weightage and important topic details, students must read this article. Also while reading and doing JAM 2025 preparation, please note that the information provided below about the IIT JAM 2025 chapter-wise weightage is tentative and made as per the analysis of the previous year's examinations.
IIT JAM 2025 Biotechnology Exam Chapter- Wise Weightage
IIT JAM Biotechnology exam syllabus is divided in such a way that questions are asked from Biology, mathematics, physics and chemistry domains. The students who are preparing for the IIT JAM 2025 Biotechnology exam can check the subject-wise weightage below:
Q: How many sections will be there in IIT JAM 2025 exam?
There will be 3 sections in the IIT JAM 2025 exam:
- Section A
- Section B
- Section C
Each section will have a different type of question and format, as described below:
Section A: This section will consist of 30 multiple-choice questions (MCQs) of 1 and 2 marks each.
Section B: This section will consist of 10 multiple-select questions (MSQs) of 2 marks each.
Section C: This section will consist of 20 numerical answer type (NAT) questions of 1 and 2 marks each.
Q: Is the examination pattern same for all the IIT JAM 2025 exam subjects?
IIT JAM is a computer-based test of three hours duration carrying 60 questions with total of 100 marks. The exam is conducted for seven subjects, Physics, Chemistry, Biotechnology, Geology, Mathematics, Mathematical Statistics and Economics.
The IIT JAM 2025 examination pattern is same for all the seven subjects for which the examination is being conducted. The questions are divided into three types, multiple-choice questions (MCQs), Multiple Select Questions (MSQs) and Numerical Answer Type (NAT). There is a differential marking scheme for each of these question types.
Q: What are the other miscellaneous information about IIT JAM 2024 examination pattern?
In all sections, questions not attempted will result in zero mark. There is no provision for partial marking. The candidates are required to select the answer (s) for MCQ and MSQ type questions using the mouse. The answer for NAT questions must be entered using a mouse on a virtual numeric keypad. The keyboard of the computer will be disabled.
There is a provision for using online virtual calculator. Candidates are not allowed to bring their own calculators.
A scribble pad will be provided for rough work. Candidates have to write their name and registration number before using it. The scribble pad has to be returned at the end of the examination. The examination will end automatically after the stipulated time. Candidates are required to adhere to the code of conduct specified in Annexure III (Code of Conduct).
Q: What is the 6 months strategy for IIT JAM 2025 preparation?
6-Month Strategy for IIT JAM 2025
With approximately 6 months to go for IIT JAM 2025, it's time to strategize your preparation. Here's a comprehensive plan to help you crack the exam:
1. Understand the Syllabus Thoroughly
Break it down: Divide the syllabus into manageable units.
Prioritize topics: Identify high-weightage topics and focus on them.
2. Create a Study Schedule
Time management: Allocate specific time slots for each subject.
Consistency: Stick to your schedule to maintain momentum.
3. Refer to Quality Study Material
Standard textbooks: Use recommended textbooks for a strong foundation.
Notes: Make concise notes for quick revision.
Online resources: Utilize online lectures, videos, and practice problems.
4. Practice Regularly
Solve problems: Practice a variety of problems to improve problem-solving skills.
Mock tests: Take regular mock tests to assess your preparation and identify areas for improvement.
Previous year papers: Analyze previous year papers to understand the exam pattern and difficulty level.
Q: What are the key factors affecting IIT JAM ranks?
There are several factors that can affect the relationship between marks and rank in IIT JAM:
- Individual Score: This is the most crucial factor. Your overall score, combining marks from all three sections (A, B, and C) of the exam, is what directly determines your rank.
- Number of Applicants: If there are more applicants in a particular year, the competition for seats increases. Even with a good score, you might end up with a lower rank compared to a year with fewer applicants.
- Difficulty Level of the Exam: The overall difficulty of the IIT JAM exam can affect marks vs rank. A tougher exam might lead to lower overall scores, potentially inflating your rank even with a moderate score compared to an easier exam year.
- Seat Availability: The number of seats available in the M.Sc. or Integrated M.Sc. programs you're interested in also plays a role. Fewer seats in a coveted program will lead to stiffer competition and potentially lower ranks for similar scores compared to programs with more seats.
- Category Reservation: IIT JAM follows reservation policies for various categories. This means separate cutoffs and ranks might be determined for categories like Scheduled Castes (SC), Scheduled Tribes (ST), Other Backward Classes (OBC), etc.
| Subject |
Weightage (In per cent) |
|---|---|
| Biology |
44 |
| Chemistry |
20 |
| Mathematics |
18 |
| Physics |
18 |
Candidates can go through important topics that they should study to score well in the IIT JAM Biotechnology exam in the table mentioned below:
| Subject | Important Topics for IIT JAM Biotechnology Paper |
|---|---|
| Biology | Biochemistry: Structure and function of biological macromolecules; Allostery; Enzymes – basic mechanisms of enzyme catalysis, Michaelis-Menten kinetics, enzyme inhibition, vitamins as coenzymes, and regulation; Bioenergetics – free-energy change, high-energy compounds, biological oxidation-reduction reactions and reduction potential; Metabolism – glycolysis, TCA cycle, oxidative phosphorylation, photosynthesis, nitrogen fixation, urea cycle, and regulation of glycolysis and TCA cycle. |
| Genetics: Mendel’s laws; Inheritance patterns of polygenic traits; Mendelian inheritance patterns of human disorders; Pedigree analysis; Chromosomal basis of inheritance; Genetic recombination; Mapping genes on chromosomes based on linkage analysis; Plant breeding. |
|
| Molecular Biology: Landmark experiments that established DNA is the genetic material; DNA replication; Proof-reading and repair of DNA; DNA recombination; Transcription; RNA processing; Translation; Regulation of gene expression including operons bacteria and differential gene expression in multicellular eukaryotes. |
|
| Animal Biology: Digestive, circulatory, respiratory, excretory, nervous, reproductive and endocrine systems; Basics of immunology – Innate and adaptive immunity, Immune cells and Immunoglobulins; Animal development – Fertilization, embryonic pattern formation, cleavage, gastrulation, cellular differentiation and morphogenesis. |
|
| Ecology: Climate patterns; Terrestrial and aquatic biomes; Environmental constraints on speciesdistribution; Factors affecting population density; Interactions among communities; |
|
| Biotechnology: Plant tissue culture; Cloning of animals through somatic cell nuclear transfer; Applications of recombinant DNA technology in medicine, agriculture and forensic science. |
|
| Physics | Units and measurements; Motion in one and two dimensions; Laws of motion; Work and kinetic energy; Conservation of energy; System of particles and rotational motion; Mechanical properties of solids and fluids; Electric charge and field; Electric potential and capacitance; Current, resistance and simple circuits; Moving charges and magnetic field; Magnetism and matter; Electromagnetic induction; Electromagnetic waves; Alternating currents; Optics: Geometrical Optics – Reflection by spherical mirrors, Refraction at spherical surfaces and lenses, Total internal reflection and Optical instruments; Wave optics – Reflection and refraction of plane waves, Interference, Diffraction, Polarization, and Young’s experiment: Dual nature of radiation and matter; Atoms, nuclei and nuclear physics; Semiconductor materials, devices and simple circuits.
|
| Chemistry | Structure and properties of Atoms: Bohr's theory; Periodicity in properties. |
| Bonding in molecules: Chemical bonding; Complex formation; Physical and chemical basis of molecular interactions. |
|
| Chemical kinetics, thermodynamics, and equilibrium: Chemical equilibrium; Chemical thermodynamics (first and second law); and Chemical kinetics (zero and first order reactions). |
|
| Physical and chemical properties of compounds: Chemical catalysis; Acid-base concepts; Concepts of pH and buffer; Conjugative effects and resonance; Inductive effects; Electromeric effects; Photochemistry; and Electrochemistry. |
|
| Physical and chemical properties of compounds: Chemical catalysis; Acid-base concepts; Concepts of pH and buffer; Conjugative effects and resonance; Inductive effects; Electromeric effects; Photochemistry; and Electrochemistry. |
|
| Instrumental techniques - Spectroscopy: fundamentals of molecular spectroscopy, emission and absorption spectroscopy, UV-Vis, IR and 1-D proton NMR spectroscopy, basics of mass spectrometry; Basics of calorimetry; Basic concepts of crystallography. |
|
| Mathematics(12-grade level) | Permutations and Combinations; Binomial Theorem; Vectors; Matrices and Determinants; Boolean Algebra; Functions; Limits and Continuity; Differentiation; Ordinary Differential Equations; Application of Derivatives; Integration as inverse process of differentiation; Definite and indefinite integrals; Methods of Integration; Integration by parts. |
| Statistics: Measures of dispersion; Mean Deviation for grouped and ungrouped data; Variance and Standard Deviation; and Analysis of Frequency Distribution. |
|
| Probability: Random Experiments; Event; Axiomatic Approach to Probability; Conditional Probability and its properties; Multiplication Theorem on Probability; Independent Events; Bayes’ Theorem; Random Variables and its Probability Distributions; Bernoulli Trails and Binomial Distributions. |
Also Read:
- IIT JAM 2025 Biotechnology Syllabus: Subject Wise Syllabus, Exam Pattern & Important Books
- Important Topics and Best Books for IIT JAM Biotechnology Preparation 2025
IIT JAM 2025 Physics Exam Chapter- Wise Weightage
IIT JAM Physics exam syllabus is divided in such a way that questions are asked from UG level of Physics domain. The students who are preparing for the IIT JAM 2025 Physics exam can check the subject-wise weightage from below:
| Subject |
Weightage (In per cent) |
|---|---|
| Modern Physics |
21 |
| SSP & Electronics |
11 |
| Electricity & Magnetism |
12 |
| Oscillation, Wave & Optics |
10 |
| KTG & Thermodynamics |
14 |
| Mathematical Methods |
15 |
| Mechanics |
13 |
Important Topics to Study in IIT JAM 2025 Physics
Candidates can go through important topics that they should study to score well in the IIT JAM exam in the table mentioned below:
| Kinetic theory, Thermodynamics |
Mathematical Methods |
| Simple Oscillators |
Mechanics and General Properties of Matter |
| Modern Physics |
|
| Electricity and Magnetism |
Solid State Physics, Devices and Electronics |
| Bipolar Junction Transistor (BJT) |
Also Read:
- How to prepare for IIT JAM Physics 2025
- IIT JAM Physics Syllabus
- Important Topics and Best Books for IIT JAM Physics 2025
IIT JAM 2025 Chemistry Exam Chapter- Wise Weightage
IIT JAM Chemistry exam syllabus is divided in such a way that questions are asked from Organic, Inorganic, and Physical Chemistry (UG level of Chemistry domain). The students who are preparing for IIT JAM 2025 Chemistry exam can check the subject-wise weightage below:
| IIT JAM Marks Distribution for Physical Chemistry | |||||
|---|---|---|---|---|---|
| Chapters | 2018 | 2019 | 2020 | 2022 | Average |
| Chemical Kinetics | 5 | 7 | 7 | 1 | 5 |
| Electrochemistry | 12 | 2 | 5 | 5 | 5.7 |
| Quantum | 5 | 4 | 4 | 4 | 4.1 |
| Thermodynamics | 8 | 3 | 5 | 2 | 4.2 |
| Solid State | 1 | 4 | 1 | 6 | 3.2 |
| Equilibrium | 0 | 2 | 2 | 4 | 2.2 |
| Surface | 1 | 2 | 0 | 1 | 1.1 |
| Physical Spectroscopy | 2 | 5 | 2 | 2 | 2 |
| Gas | 3 | 4 | 4 | 6 | 4 |
| Solution | 0 | 2 | 3 | 4 | 1.5 |
| Total | 37 | 35 | 33 | 35 | 33.14 |
| IIT JAM Marks Distribution for Organic Chemistry | |||||
|---|---|---|---|---|---|
| Chapters | 2019 | 2020 | 2021 | 2022 | Average |
| GOC+ Aromaticity | 5 | 3 | 2 | 4 | 3.5 |
| Stereochemistry | 4 | 6 | 2 | 3 | 3.7 |
| Reaction Intermediates | 3 | 2 | 2 | 2 | 2.2 |
| Reaction Mechanism | 3 | 2 | 3 | 3 | 2.7 |
| Named Reactions | 4 | 4 | 2 | 3 | 3.2 |
| Reagents | 7 | 6 | 11 | 7 | 8 |
| Pericyclic | 0 | 2 | 3 | 2 | 1.7 |
| Heterocyclic Chemistry | 0 | 1 | 4 | 0 | 1.2 |
| Biomolecules/NP | 6 | 2 | 3 | 0 | 2.7 |
| Organic Spectroscopy | 2 | 2 | 1 | 3 | 2 |
| Total | 34 | 30 | 33 | 27 | 30.9 |
The weightage of questions asked from different subjects in the IIT JAM Chemistry paper is as mentioned below:
| Subject |
Weightage (In Percentage) |
|---|---|
| 30-40 |
|
| 20 |
|
| 18 |
Candidates can go through important topics that they should study to score well in the IIT JAM exam for Chemistry in the table mentioned below:
| Subject |
Important Topics for IIT JAM Chemistry Paper |
|---|---|
| Organic Chemistry |
Organic Reaction Mechanism & Synthetic Application |
| Basic Concept of Organic Chemistry and Stereochemistry |
|
| Inorganic Chemistry |
Transition metals (d-block) |
| Physical Chemistry |
Chemical Kinetics |
| Electrochemistry |
Also Read:
- IIT JAM 2025 Chemistry Syllabus: Subject Wise Syllabus, Exam Pattern & Important Books
- Important Topics and Best Books for IIT JAM Chemistry 2025
IIT JAM 2025 Mathematics Exam Chapter- Wise Weightage
Candidates can go through the list of important topics for IIT JAM Mathematics prep and the weightage allotted to them in previous years' papers of the exam.
| Important Topics |
IIT JAM Mathematics Exam Weightage (in marks) |
|---|---|
| Differential Calculus |
23 |
| Linear Algebra |
13 |
| Sequence and Series |
12 |
| Differential Equation |
12 |
| Integral Calculus |
11 |
| Vector Calculus |
10 |
Also Read:
- Important Topics and Best Books for IIT JAM Mathematics
- IIT JAM 2025 Mathematical Statistics Syllabus: Subject Wise Syllabus, Exam Pattern & Important Books
IIT JAM 2025 Mathematical Statistics Exam Chapter- Wise Weightage
Candidates can go through the list of important topics for IIT JAM Mathematical Statistics prep and the weightage allotted to them in previous years' papers of the exam.
| Important Topics |
IIT JAM Mathematical Statistics Exam Weightage (in marks) |
|---|---|
| Random Variables |
20 |
| Estimation |
15 |
| Differential Calculus |
13 |
| Matrices |
10 |
| Sequences and Series |
10 |
Also Read:
- Best Books for IIT JAM Mathematical Statistics
- IIT JAM 2025 Mathematical Statistics Syllabus: Subject Wise Syllabus, Exam Pattern & Important Books
IIT JAM 2025 Geology Exam Chapter- Wise Weightage
Candidates can go through the list of important topics for IIT JAM Geology prep and the weightage allotted to them in previous years' papers of the exam.
| Important Topics |
IIT JAM Geology Exam Weightage (in marks) |
|---|---|
| Petrology |
25 |
| Mineralogy |
20 |
| Structural Geology |
18 |
| The Planet Earth |
19 |
| Paleontology |
9 |
Also Read:
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