Sample Papers with Solutions for IISER Entrance Exam Question Papers
Preparing for the IISER Aptitude Test (IAT) is a different kind of challenge compared to most other science entrance exams. It doesn't just test formulas — it tests how well you actually understand a concept. That's exactly why Sample papers with solutions for IISER entrance exam question papers are so valuable. They don't just show you what kind of questions to expect; they train you to think the way the paper wants you to think. This page walks you through what the IAT actually looks like, subject by subject, and how sample papers fit into a realistic study plan.
Free PDF Collection of Sample Papers with Solutions for IISER Entrance Exam
IISER Entrance Exam Syllabus (Subject-wise)
Subject | Complete Syllabus |
|---|---|
Physics | Physical World, Units and Measurements, Motion in a Straight Line, Motion in a Plane, Laws of Motion, Work, Energy and Power, System of Particles and Rotational Motion, Gravitation, Mechanical Properties of Solids, Mechanical Properties of Fluids, Thermal Properties of Matter, Thermodynamics, Kinetic Theory, Oscillations, Waves, Electric Charges and Fields, Electrostatic Potential and Capacitance, Current Electricity, Moving Charges and Magnetism, Magnetism and Matter, Electromagnetic Induction, Alternating Current, Electromagnetic Waves, Ray Optics and Optical Instruments, Wave Optics, Dual Nature of Radiation and Matter, Atoms, Nuclei, Semiconductor Electronics, Communication Systems, Experimental Skills |
Chemistry | Some Basic Concepts of Chemistry, Structure of Atom, Classification of Elements and Periodicity, Chemical Bonding and Molecular Structure, States of Matter, Thermodynamics, Equilibrium, Redox Reactions, Hydrogen, The s-Block Elements, The p-Block Elements, Organic Chemistry – Basic Principles and Techniques, Hydrocarbons, Environmental Chemistry, Solid State, Solutions, Electrochemistry, Chemical Kinetics, Surface Chemistry, General Principles and Processes of Isolation of Elements, The p-Block Elements, The d- and f-Block Elements, Coordination Compounds, Haloalkanes and Haloarenes, Alcohols, Phenols and Ethers, Aldehydes, Ketones and Carboxylic Acids, Amines, Biomolecules, Polymers, Chemistry in Everyday Life |
Mathematics | Sets, Relations and Functions, Trigonometric Functions, Principle of Mathematical Induction, Complex Numbers and Quadratic Equations, Linear Inequalities, Permutations and Combinations, Binomial Theorem, Sequences and Series, Straight Lines, Conic Sections, Introduction to Three-Dimensional Geometry, Limits and Derivatives, Mathematical Reasoning, Statistics, Probability, Relations and Functions, Inverse Trigonometric Functions, Matrices, Determinants, Continuity and Differentiability, Applications of Derivatives, Integrals, Applications of Integrals, Differential Equations, Vector Algebra, Three-Dimensional Geometry, Linear Programming, Probability |
Biology | The Living World, Biological Classification, Plant Kingdom, Animal Kingdom, Morphology of Flowering Plants, Anatomy of Flowering Plants, Structural Organisation in Animals, Cell: Structure and Function, Biomolecules, Cell Cycle and Cell Division, Transport in Plants, Mineral Nutrition, Photosynthesis, Respiration in Plants, Plant Growth and Development, Digestion and Absorption, Breathing and Exchange of Gases, Body Fluids and Circulation, Excretory Products and Their Elimination, Locomotion and Movement, Neural Control and Coordination, Chemical Coordination and Integration, Reproduction in Organisms, Sexual Reproduction in Flowering Plants, Human Reproduction, Reproductive Health, Principles of Inheritance and Variation, Molecular Basis of Inheritance, Evolution, Human Health and Disease, Strategies for Enhancement in Food Production, Microbes in Human Welfare, Biotechnology: Principles and Processes, Biotechnology and Its Applications, Organisms and Populations, Ecosystem, Biodiversity and Conservation, Environmental Issues |
Preparation Notes
Section | Details |
|---|---|
Syllabus Base | NCERT Class 11 & Class 12 |
Subjects Covered | Physics, Chemistry, Mathematics, Biology |
Question Type | Objective (MCQs) |
Focus Areas | Conceptual understanding, analytical thinking, numerical problem-solving, and application-based questions |
Best Study Material | NCERT Textbooks, Previous Year Question Papers, Mock Tests, and Concept-based Practice Questions |
What Is the IISER Entrance Exam (IAT)
IAT stands for IISER Aptitude Test. It is the single national-level exam used for admission into the undergraduate programmes at all seven IISERs, along with a few connected routes at IISc Bengaluru, IIT Madras, and IIT Guwahati. Unlike JEE or NEET, the IAT is subject-balanced rather than subject-heavy — it gives equal weight to Physics, Chemistry, Mathematics, and Biology, with 15 questions from each. This balance is exactly why sample papers matter so much here: a student who is strong in Physics and Maths but weak in Biology can lose a significant chunk of marks if that subject isn't practised with the same seriousness.
IISER Entrance Exam at a Glance
Detail | Information |
|---|---|
Exam name | IISER Aptitude Test (IAT) |
Conducted for | Admission to all 7 IISERs, plus IISc Bengaluru and select IIT routes |
Exam mode | Computer-Based Test (CBT) |
Total questions | 60 MCQs |
Subjects covered | Physics, Chemistry, Mathematics, Biology |
Questions per subject | 15 each |
Total marks | 240 |
Marking scheme | +4 for correct, -1 for incorrect |
Duration | 3 hours (4 hours for PwD candidates) |
Syllabus basis | NCERT Class 11 and 12 |
Sectional cutoff | None — only overall score matters |
Compulsory sections | All four appear in the paper, but attempting all is optional (though recommended) |
Keep this table close during your preparation. One detail students often miss is that there's no sectional cutoff — your overall score across whichever sections you attempt is what counts. That single fact changes how you should approach sample papers, because it means smart section selection can matter as much as accuracy.
Why IAT Sample Papers Are Different From Regular Practice Sets
Most entrance exam sample papers train you to recall formulas quickly. IAT sample papers need to do something extra — they need to train conceptual reasoning, because the actual paper often asks you to apply an idea in a slightly unfamiliar setting rather than repeat a textbook question. When you solve sample papers with proper solutions, look closely at how the solution explains the reasoning, not just the final numeric answer. That reasoning is what actually transfers to the real exam, where questions rarely appear in the exact same form twice.
Solutions also matter because IAT has no partial credit and a real negative marking cost. Reviewing why an option was wrong, not just which option was right, is what stops you from repeating the same error pattern across multiple sample papers.
Subject-Wise Sample Paper Guide for IAT
Since each subject carries exactly 15 questions, no subject can be treated as "less important" here. Below is what to focus on while practising sample papers for each one.
Physics Sample Papers
IAT Physics draws heavily from Mechanics — Motion in a Straight Line, Laws of Motion, and Mechanical Properties of Fluids and Solids appear consistently. Thermal Properties of Matter and Thermodynamics are another recurring zone, along with Electrostatics, Capacitance, and Moving Charges and Magnetism. When solving physics sample papers, don't just check if your final answer matches — re-derive the formula from first principles if you got it wrong. IAT often twists a standard formula-based question into a conceptual one, and sample paper practice is where you catch that pattern early.
Chemistry Sample Papers
Chemistry in IAT spans Physical, Inorganic, and Organic Chemistry together, so sample papers here need to be split across all three rather than favouring one. Physical Chemistry topics like Thermodynamics, Chemical and Ionic Equilibrium, Chemical Kinetics, and Electrochemistry are common. Inorganic Chemistry brings in Periodic Classification, Chemical Bonding, and d- and f-Block Elements along with Coordination Compounds. Organic Chemistry covers Hydrocarbons, functional groups like Alcohols, Phenols, and Ethers, plus Biomolecules. A useful habit while reviewing chemistry sample papers is to keep a running "reaction mechanism" notebook — mark every reaction you got wrong and revisit it weekly.
Mathematics Sample Papers
Maths sample papers for IAT should cover Algebra, Sets and Relations, Coordinate Geometry, Calculus, and Trigonometry as the core zones. IAT Maths tends to reward students who can move between topics quickly rather than students who are only fast within one chapter. When you're solving a maths sample paper, time yourself strictly per question rather than per paper — this shows you exactly which topic slows you down the most, which is far more useful than an overall time score.
Biology Sample Papers
Biology is the subject most PCM-background students underestimate, and it's also the one where sample paper practice gives the fastest improvement. IAT Biology follows the standard NCERT Class 11 and 12 framework, covering life processes, genetics, physiology, and ecology-based topics. Because biology is more definition and diagram-heavy than the other three subjects, sample papers act almost like flashcards — solving them regularly keeps terminology fresh instead of letting it blur together closer to the exam.
How to Build a Sample Paper Routine for IAT
A scattered approach to sample papers rarely helps. Try structuring it like this instead:
In the early months, solve sample papers subject-wise so you can go deep into one area at a time.
Once you've covered the syllabus once, switch to full 60-question sample papers under strict 3-hour timing.
After every paper, spend at least as much time reviewing solutions as you spent solving the paper itself.
Track subject-wise scores across multiple sample papers to see if your weaker subject is actually improving or just staying flat.
In the final weeks, prioritise sample papers that closely follow the current NCERT-based pattern rather than very old papers, since question style can shift slightly year to year.
A Quick Note on Section Strategy
Because IAT has no sectional cutoff, some students choose to attempt all four sections lightly rather than going deep into each one, while others focus more heavily on their two or three strongest subjects. Sample papers are the best place to test which approach actually works better for you personally — try both strategies across different practice papers and compare your final scores before deciding which one to carry into the real exam.
FAQs for IISER Entrance Exam Sample Papers
Solving IISER Entrance Exam sample papers with solutions is one of the most effective methods to improve preparation for the aptitude-based entrance test. These papers help students understand the examination structure, question style, and difficulty level expected in the actual test. Regular practice improves conceptual clarity in subjects like Physics, Chemistry, Mathematics, Biology, and logical reasoning. Sample papers also help students develop the ability to analyse questions quickly and select the correct approach within limited time. The detailed solutions allow candidates to identify mistakes, understand alternative methods, and revise important concepts effectively. MyClass24 provides carefully designed IISER Entrance Exam sample papers with step-by-step solutions that help aspirants practise systematically, strengthen their fundamentals, and build confidence for achieving better results in the entrance examination.
IISER Entrance Exam sample papers with solutions improve performance by providing students with realistic practice and detailed learning support. Attempting these papers regularly helps candidates improve time management, accuracy, and confidence while solving a variety of scientific aptitude questions. The detailed solutions after each paper explain the correct reasoning process and help students understand where they made mistakes. This allows them to strengthen weak concepts and develop better problem-solving strategies. Continuous practice also improves the ability to handle unfamiliar questions, which is important for competitive examinations like IISER. MyClass24 provides high-quality IISER Entrance Exam sample papers with clear and detailed solutions that help students analyse their preparation, overcome difficulties, and approach the final examination with better confidence and accuracy.
Yes, IISER Entrance Exam sample papers are extremely useful for understanding the latest examination pattern and question format. Since the exam tests scientific aptitude along with conceptual understanding, practising well-structured sample papers helps students become familiar with different types of questions asked from Physics, Chemistry, Mathematics, and Biology. These papers provide insight into the balance of subjects, difficulty level, and the type of reasoning required to solve problems effectively. Regular practice also helps students identify important topics and plan their revision strategy accordingly. Using updated sample papers ensures that preparation remains focused and exam-oriented. MyClass24 prepares IISER Entrance Exam sample papers with detailed solutions to help students practise relevant questions and develop the skills required to perform well in the actual examination.
The number of IISER Entrance Exam sample papers a student should solve depends on their preparation level, but practising around 15 to 20 full-length papers can significantly improve exam readiness. Students should begin solving sample papers after completing the major topics from the syllabus. Initially, the focus should be on understanding concepts and analysing solutions rather than only checking marks. As the exam date approaches, papers should be attempted within a fixed time limit to improve speed and accuracy. Reviewing every incorrect answer helps identify weak areas and prevents repeated mistakes. MyClass24 offers a collection of quality IISER Entrance Exam sample papers with detailed solutions that allow students to evaluate their progress, improve problem-solving skills, and prepare confidently for the competitive examination.