Important Chapter List for IAT 2025 – Subject – Download Free Guide for Preparation
The IISER Aptitude Test (IAT 2025) has a broad syllabus. But here’s the truth – not all chapters are equally important.
If you want to study smart, not just hard, you need to focus on the most important chapters first. These are the chapters that carry high weightage, are asked repeatedly in previous exams, and test core concepts.
This blog gives you the complete important chapter list for IAT 2025 – sorted by subject. It’s the shortcut to focused preparation and higher scores.
IAT 2025 – Why It’s Important to Focus on High-Yield Chapters
The IAT is time-bound. You don’t have time to waste on low-impact topics.
Here’s why you must know the important chapter list for IAT 2025:
- Saves study time by cutting out less relevant content
- Increases your chances of getting more correct answers
- Builds confidence with topics that are most likely to appear
- Improves mock test scores through focused revision
- Helps you plan smarter for all four subjects
This strategy has worked for toppers every year.
Download Important Chapter List for IAT 2025 – Subject-Wise PDF
We’ve compiled a neatly organised, printable version of the list for your study planner.
Print it. Stick it on your wall. Track your progress daily.
Physics – Important Chapters for IAT 2025
| Chapter Name | Why It’s Important |
| Laws of Motion | Frequently tested and concept-heavy |
| Work, Energy and Power | Often used in numerical-type questions |
| Electrostatics | High-weightage and application-based |
| Magnetic Effects of Current | Comes in combination with Physics numericals |
| Ray and Wave Optics | Highly scoring with proper diagram practice |
| Thermodynamics | Conceptual and calculation-based |
Chemistry – Important Chapters for IAT 2025
| Chapter Name | Why It’s Important |
| Chemical Bonding | Central to understanding molecular structure |
| Coordination Compounds | Scoring and often appears in IAT |
| Organic Chemistry (Basics) | Key to multiple MCQs across topics |
| Equilibrium (Chemical + Ionic) | Tests concept clarity and reaction logic |
| Thermochemistry | Simple but carries marks |
| Periodic Classification | Basis for many trends and reasoning questions |
Mathematics – Important Chapters for IAT 2025
| Chapter Name | Why It’s Important |
| Quadratic Equations | Easy to score, appears in almost every IAT |
| Probability & Statistics | Conceptual + application-based |
| Calculus (Limits & Derivatives) | High-weightage and formula-driven |
| Matrices and Determinants | Scoring and conceptually important |
| Coordinate Geometry | Appears regularly with diagrams |
| Trigonometry | Quick-solve chapter with predictable questions |
Biology – Important Chapters for IAT 2025
| Chapter Name | Why It’s Important |
| Genetics and Evolution | Heavily featured, tests logic + memory |
| Human Physiology | High-weightage and repeated questions |
| Cell Biology | Appears across multiple questions |
| Plant Physiology | Scoring and mostly fact-based |
| Ecology and Environment | Simple yet often included in exams |
| Biomolecules | Easy to memorise and frequently asked |
Conclusion
Success in IAT isn’t just about studying everything — it’s about studying the right things. These important chapters for IAT 2025 are where questions come from most often. Master them, and you’ll cover more than 70% of the real paper’s weightage.
Download the complete chapter list now
Study smart. Boost your score. Get IISER-ready.
FAQs – Important Chapter List for IAT 2025
Q1. Is this chapter list based on past years’ papers?
Yes. It is curated from trends observed in multiple previous IAT papers.
Q2. Should I skip chapters not on this list?
Not entirely. Cover them later. First focus on these to secure a strong base.
Q3. Is this list aligned with the NCERT syllabus?
Yes. All chapters are from the Class 11 and 12 NCERT syllabus.
Q4. Will focusing on these chapters improve my score?
Definitely. These chapters carry maximum weight and are easiest to score from.
Q5. Can I get a PDF of this chapter list?
Yes. Click here to download the PDF and use it as your prep guide.
