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IISER Cutoff: Check Previous Year Cutoffs
January 13, 2025
IISER Aptitude Test Answer Key 2025: Download Here
January 13, 2025
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November 11, 2024
IISER Aptitude Mock Test 2024: Attempt Online Mock Test Series
April 2, 2024
IISER Aptitude Question Papers: Download PDFs
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IISER Selection Process 2023
March 6, 2023
IISER Aptitude Eligibility 2023: Check Criteria
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IISER Aptitude Exam Date 2023: Check Details Here
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IISER Aptitude Books 2023: Get Best Preparation Books
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IISER Aptitude Admit Card 2023
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IISER Exam Pattern 2025: The Indian Institutes of Science Education and Research (IISER) sets the exam pattern for the IISER Admission Test. Candidates planning to appear for the exam should go through the IISER exam pattern and syllabus before starting their preparation. They can check the detailed paper pattern from the official notification of IISER or directly from this page.
| Subjects | Practice Unlimited IISER Aptitude Questions |
|---|---|
| Physics | Practice Physics Questions |
| Chemistry | Practice Chemistry Questions |
| Biology | Practice Biology Questions |
| Mathematics | Practice Mathematics Questions |
*Steps to attempt unlimited IISER Aptitude practice tests are mentioned below in this article.
By going through the latest pattern, applicants can understand the marking scheme, exam mode, and important topics for IISER Exam 2025. The IAT 2025 question paper will consist of 4 sections i.e., Physics, Chemistry, Mathematics, and Biology. Read this article to have complete details on IISER 2025 syllabus and paper pattern.
The IISER prescribes the paper pattern of the IISER Aptitude Test on its official website. Candidates must check the below table to get an overview of the test paper:
| Particulars | Details |
|---|---|
| Mode of Exam | Online (Computer-based Test) |
| Types of Questions | Objective |
| Total Number of Questions | 60 |
| Total Marks | 180 |
| Medium | English |
| Duration | 3 Hours |
| Section | 4 Sections – Physics – Chemistry – Mathematics – Biology |
The exam pattern will guide the candidate with the type of questions, mode of exam, number of questions, total marks, sections, and duration. Aspirants will be given 3 hours to attempt a total of 60 objective questions. The examination will be conducted online. The medium of instruction will be English.
Check the section-wise exam pattern below:
| Sections | Number of Questions per Section | Marks per Section |
|---|---|---|
| Physics | 15 | 45 |
| Chemistry | 15 | 45 |
| Mathematics | 15 | 45 |
| Biology | 15 | 45 |
| Total | 60 | 180 |
The IISER admission test score will be calculated per the marking scheme specified in the IISER exam pattern. Candidates can check the marking pattern of the entrance exam below:
| Answers | Marks |
|---|---|
| Correct | +3 |
| Incorrect | -1 |
| Questions Not Answered | 0 |
Know the steps to practice questions on IISER 2025 aptitude test below:
The IISER Aptitude Test syllabus includes topics from Physics, Chemistry, Mathematics, and Biology. Candidates must go through the syllabus while preparing for the exam and ensure that they have covered it before the exam. Check the complete subject-wise syllabus of the IISER 2025 exam below:
Candidates can find the IISER Physics syllabus in the table below.
| Chapters | Chapters |
|---|---|
| Physical World and Measurement | Current Electricity |
| Kinematics | Magnetic Effect of Current and Magnetism |
| Laws of Motion | Electromagnetic Induction |
| Work, Energy, and Power | Alternating Current |
| Motion of Systems of Particles and Rigid body | Electromagnetic Waves |
| Gravitation | Optics |
| Properties of Bulk Matter | Dual Nature of Radiation and Matter |
| Thermodynamics | Atoms |
| Behaviour of Perfect Gas and Kinetic Energy | Nuclei |
| Oscillations | Electronic Devices |
| Waves | Communication Systems |
| Electrostatics | – |
Aspirants can find the IISER Chemistry syllabus in the table below.
| Chapters | Chapters | Chapters |
|---|---|---|
| Basic Concept of Chemistry | The p-block Elements | The p-block elements |
| Structure of Atom | Organic Chemistry – Some Basic Principles and Techniques | The d- & f-block elements |
| Classification of Elements and Periodicity in Properties | Hydrocarbons | Coordination Compounds |
| Chemical Bonding and Molecular Structure | Environmental Chemistry | Haloalkanes and Haloarenes |
| States of Matter | Solid State | Alcohols, phenols, and Ethers |
| Thermodynamics | Solutions | Aldehydes, Ketones, and Carboxylic Acids |
| Equilibrium | Electrochemistry | Organic Compounds Containing Nitrogens |
| Redox Reactions | Chemical Kinetics | Biomolecules |
| Hydrogen | Surface Chemistry | Polymers |
| The s-block Elements | General Principles and Processes of Isolation of Elements | Chemistry in Everyday Life |
Candidates can find the IISER Mathematics syllabus in the table below.
| Chapters | Chapters | Chapters |
|---|---|---|
| Sets | Straight Lines | Application of Derivatives |
| Relations and Functions | Conic Sections | Integrals |
| Trigonometric Functions | Introduction to Three-Dimensional Geometry | Applications of Integrals |
| Inverse Trigonometric Functions | Limits and Derivatives | Differential Equations |
| Principle of Mathematical Induction | Mathematical Reasoning | Vectors |
| Complex Numbers and Quadratic Equations | Statistics | Three-dimensional Geometry |
| Linear Inequalities | Probability | Linear Programming |
| Permutations and Combinations | Matrices | Sequences and Series |
| Binomial Theorem | Determinants | Continuity and Differentiability |
Candidates can find the IISER Biology syllabus in the table below.
| Chapters | Chapters |
|---|---|
| Diversity in the Living World | Reproduction |
| Structural Organization in Animals and Plants | Genetics and Evolution |
| Cell Structure and Function | Biology and Human Welfare |
| Plant Physiology | Biotechnology and Its Application |
| Human Physiology | Ecology and Environment |
The books available for the competitive exam of BS and BS-MS Dual helps the candidate to understand complex topics easily. Find below some of the best preparation books available for the IISER entrance exam–
Biology
Chemistry
Mathematics
Physics
Related Links –
Here are some commonly answered questions on the IISER paper pattern:
Ans: The IISER 2025 exam will be administered by the Indian Institutes of Science Education and Research.
Ans: The format of the IISER exam is Multiple Choice Questions (MCQs).
Ans: No. The IISER entrance exam will be administered online, using a Computer-based Test (CBT).
Ans: The duration of the IISER 2025 entrance test is 180 minutes (3 hours).
Ans: The IISER Entrance Exam will be administered in English.
We have now provided you with all the details on IISER 2025 Paper Pattern. Candidates must now focus on preparation. If you have any questions, feel to post them in the comment section below. We will get back to you at the earliest.
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