Candidates must know the high-weightage topics to prepare for the NEET exam as most of the questions will be asked from these chapters. NTA revised the NEET syllabus last year, deleted a few chapters and added some new course-relevant chapters. We have analysed the syllabus and developed the most relevant topics for the NEET 2025 exam that will help you ace the exam with good marks and rank.
Read the full article to learn about the top 5 topics in Biology, Physics, and Chemistry, and also find out the weightage of each chapter to make an informed strategy for your preparation.
What to Do Before Igniting the NEET 2025 Preparation
NEET exam consists of the syllabus for classes 11th & 12th Biology, Physics, and Chemistry. Before looking for the important topics students should thoroughly understand the syllabus and know the exam pattern. It will help them know how they must prepare for the exam and what questions will be asked.
Top 5 Chapters in NEET 2025 For Biology
Biology is one of the most important subjects for the NEET exam. It covers 50% of the exam paper. Out of the 720 marks 360 marks are allotted for biology. Therefore, focusing on the important topics will increase your chances of getting good marks in the subject. The top 5 chapters in biology are:
- Human Physiology: This chapter has 20% weightage in the NEET question paper. The topic includes Digestion & Absorption, Breathing & Exchange of Gases, Body Fluids & Circulation, Excretory Products, Locomotion & Movement, Neural Control & Coordination & Chemical Coordination. Studying the diagram is important for understanding.
- Genetics and Evolution: This chapter covers 18% of the questions in the NEET question paper. The important topics in this chapter are Mendel’s Laws of Inheritance, Incomplete Dominance, Chromosomal Theory of Inheritance, Sex Determination, Mutation, & Genetic-Disorders.
- Diversity in the Living World: It has 14% weightage in the NEET question paper. The topics in this chapter are The Living World, Biological Classification, Animal Kingdom, & Plant Kingdom.
- Ecology and environment: It has a 12% share in the NEET question paper. Ecosystem, abiotic and biotic components, and Biological Interactions in an Ecosystem are the important topics in this chapter.
- Reproduction: It covers 10% of the NEET question paper. Reproduction in humans, animals and plants is the key topic for this chapter.
Other Chapter Weightage in NEET 2025
The table below shows the other topic weightage in the NEET 2025 question paper
| Chapter Name | Weightage in Percentage |
| Cell Structure and Function | 5% |
| Structural Organisation in Animals and Plants | 9% |
| Plant Physiology | 6% |
| Biotechnology & Its Application | 3% |
| Biology & Human Welfare | 4% |
Download NEET UG Biology 2024 Question Paper With Answer Key
Top 5 Chapters in NEET 2025 For Chemistry
Chemistry is one of the scoring subjects in the NEET examination. Most of the questions in chemistry are based on concepts. The subject is divided into organic, inorganic, and physical chemistry. Practising Numerical, and studying the periodic table and chemical structures are important in scoring good marks in the subject. The top 5 chapters in chemistry are as follows:
- Thermodynamics: It has a 9% weightage in the NEET question paper. Most of the questions in chemistry are from this chapter.
- Alcohols, Phenols and Ethers: The most important chapter in organic chemistry. The chapter weightage is 8% in the exam. The chain reaction and chemical structure are important to learn in this chapter.
- Equilibrium: Students should focus on the numerical in this chapter as it comprises 4% of the total questions.
- Chemical Bonding and Molecular Structure: It consists of 5% of the total questions. Valency, the octet rule, chemical bonds, etc. are some of the important topics in this chapter.
- d and f Block Elements: The periodic table is an important part of chemistry. 4% of questions are asked from this chapter. Focusing on element properties and their applications is important.
Other Chapter Weightage in NEET 2025
The table below shows the other topic weightage in the NEET 2025 question paper
| Chapter Name | Weightage in Percentage |
| Basic Concept of Chemistry | 2% |
| Structure of Atom | 3% |
| Classification of elements and periodicity in properties | 3% |
| States of Matter: Gasses and liquids | 2% |
| Solid-state | 2% |
| Redox Reactions | 1% |
| Solutions. | 5% |
| Electrochemistry | 4% |
| Chemical kinetics | 3% |
| Surface Chemistry | 1% |
| General Principles and Processes of Isolation Elements | 1% |
| s- Block Elements (alkali and Alkaline earth metals) | 1% |
| Some p-Block elements | 1% |
| Coordination compounds | 4% |
| Haloalkanes and Haloarenes | 1% |
| Aldehydes, Ketones and Carboxylic Acids | 3% |
| Organic Compounds Containing Nitrogen | 1% |
| Biomolecules. | 3% |
| Polymers | 3% |
| Chemistry in Everyday Life | 4% |
| Environmental Chemistry | 1% |
Explore NEET UG Chemistry 2024 Question Paper With Answer Key
Top 5 Chapters in NEET 2025 For Physics
Physics is one of the most challenging subjects for NEET aspirants. The subjects mostly consist of the derivation of formulas and their applications. Therefore understanding concepts and practising is very important. The top 5 chapters in Physics are as follows:
- Optics: This chapter deals with ray optics, wave optics, and optical instruments. 10% of the total questions in physics for NEET are from these chapters. Students must prepare for the numerical as it is a crucial part.
- Electronic Devices: 9% of the questions in NEET physics come from this chapter dealing with semiconductors. Learning the circuits and their application is important.
- Electrostatics: This is the first chapter for class 12th students and comprises 9% of the NEET exam paper. Questions in this chapter are based on electric charge, electrostatic potential, and capacitance.
- Thermodynamics: Studying thermodynamics is important for the NEET exam. 9% of the questions are asked in this chapter. Practising numerical based on heat is important.
- Current Electricity: 8% of questions are based on electric current. Understanding the flow of current, circuits, and their applications are important for understanding the current.
Other Chapter Weightage in NEET 2025
The table below shows the other topic weightage in the NEET 2025 question paper
| Chapter Name | Weightage in Percentage |
| Physical-world and measurement | 2% |
| Kinematics | 3% |
| Laws of Motion | 3% |
| Work, Energy and Power | 4% |
| Gravitation | 2% |
| Properties of Bulk Matter | 3% |
| The behaviour of Perfect Gas and Kinetic Theory | 3% |
| Oscillation & Waves | 3% |
| Magnetic Effect of Current & Magnetism | 5% |
| Electromagnetic Induction & Alternating Current | 8% |
| Electromagnetic Wave | 5% |
| Dual Nature of Matter and Radiation | 6% |
| Atoms & Nuclei | 3% |
Download NEET UG Physics 2024 Solved Question Paper
Expert Tips to Study Important Chapters
Studying important chapters using the expert’s tips will help you answer well and score good marks in the NEET exam. Here are a few tips from the experts:
- Understand the complexity of the topic under expert guidance.
- Make short notes and revise them regularly.
- Focus on concepts.
- Practise mock tests under a simulated exam environment.
- Utilize effective time management strategies.
- Stay healthy and sleep properly.
Conclusion
Preparing for the important chapter will increase your chance of success in the NEET exam. Regular revision and practice of these chapters will improve your overall score and performance. Expert guidance from a reputed coaching centre will help you in understanding the complex topics and acing in the exam. IIB Career Institute is one of the best NEET coaching institutes in Maharashtra that prepares you for the exam and improves overall performance. Join the elite coaching centre to elevate your performance and score in the NEET exam.
Frequently Asked Questions
What are the most important chapters for NEET 2025 Chemistry?
Answer: The most important chapters in NEET 2025 Chemistry are Thermodynamics, Alcohol Phenol & ether, equilibrium, chemical bonding, and d & f block elements. These chapters cover around 40% of the total questions in NEET chemistry.
Can I skip some chapters for NEET?
Answer: Skipping chapters is not good as it will impact your overall score and rank. You should focus on the important chapters, meanwhile studying the less relevant chapters will help you to answer the full paper and score more.
Is the new NCERT applicable for NEET 2025?
Answer: NTA has revised the NEET 2025 syllabus and has reduced the syllabus following the latest NCERT books. To study for NEET 2025 it is important to refer to the latest syllabus and NCERT books.
