NEET 2025 Preparation: 5 Essential Topics in Biology, Chemistry & Physics – Check Now

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To do well in the NEET exam, it's crucial to know which topics carry the most weight. Most questions will come from these chapters. The NTA changed the NEET syllabus last year, removing some chapters and adding new ones. We’ve analyzed the syllabus to identify the most important topics for the NEET 2025 exam. This will help you score high and improve your rank.

Read on to discover the top 5 topics in Biology, Physics, and Chemistry, along with the weightage of each chapter. This information will help you create a solid study plan.

What to Do Before Starting NEET 2025 Preparation

Before you begin studying, make sure you understand the syllabus and the exam pattern. Knowing these details will help you prepare effectively and give you an idea of what to expect in the exam.

Top 5 Chapters in NEET 2025 for Biology

Biology is a key subject for the NEET exam, making up 50% of the paper. Out of 720 marks, 360 are for Biology. Focusing on important topics can significantly boost your scores. Here are the top 5 chapters in Biology:

Human Physiology: This chapter holds a 20% weightage. Important topics include Digestion, Breathing, Circulation, and Neural Control. Make sure to understand the diagrams.
Genetics and Evolution: This chapter accounts for 18% of the questions. Key topics are Mendel’s Laws, Chromosomal Theory, and Genetic Disorders.
Diversity in the Living World: This chapter contributes 14% to the exam. Key topics include Biological Classification and the Animal and Plant Kingdoms.
Ecology and Environment: This chapter has a weightage of 12%. Focus on Ecosystems and Biological Interactions.
Reproduction: This chapter covers 10% of the exam, focusing on human, animal, and plant reproduction.

Other Chapter Weightage in NEET 2025

Here's a table showing the weightage of other important Biology topics in NEET 2025:

Chapter Name	Weightage (%)
Cell Structure and Function	5%
Structural Organisation in Animals and Plants	9%
Plant Physiology	6%
Biotechnology & Its Applications	3%
Biology & Human Welfare	4%

Top 5 Chapters in NEET 2025 for Chemistry

Chemistry is another important subject for NEET. Most questions focus on concepts. Here are the top 5 chapters in Chemistry:

Thermodynamics: This chapter has a weightage of 9%. Many questions come from this topic.
Alcohols, Phenols, and Ethers: With an 8% weightage, this is a key organic chemistry chapter. Pay attention to chemical structures.
Equilibrium: This chapter makes up 4% of the questions. Focus on numerical problems.
Chemical Bonding and Molecular Structure: This chapter contributes 5% of the questions. Important topics include Valency and chemical bonds.
d and f Block Elements: This chapter is vital for understanding the periodic table and contributes 4% of the questions.

Other Chapter Weightage in NEET 2025

Here's a table showing the weightage of other Chemistry topics in NEET 2025:

Chapter Name	Weightage (%)
Basic Concept of Chemistry	2%
Structure of Atom	3%
Classification of Elements and Periodicity in Properties	3%
States of Matter: Gases 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%

Top 5 Chapters in NEET 2025 for Physics

Physics can be tough for NEET aspirants, as it often involves formulas and applications. Here are the top 5 chapters in Physics:

Optics: This chapter deals with ray optics and wave optics. It makes up 10% of the questions.
Electronic Devices: Covering 9% of the questions, this chapter focuses on semiconductors.
Electrostatics: This first chapter for class 12 accounts for 9% of the exam. Key topics include electric charge and capacitance.
Thermodynamics: Important for the NEET exam, this chapter also contributes 9% of the questions.
Current Electricity: This chapter covers 8% of the questions. Understanding circuits is crucial.

Other Chapter Weightage in NEET 2025

Here's a table showing the weightage of other Physics topics in NEET 2025:

Chapter Name	Weightage (%)
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%

Expert Tips for Studying Important Chapters

Here are some expert tips to help you study these key chapters effectively:

Understand each topic with guidance from experts.
Create short notes and review them often.
Focus on grasping concepts rather than memorizing.
Take mock tests to practice under exam conditions.
Manage your time wisely while studying.
Stay healthy and get enough sleep.

Conclusion

Focusing on these important chapters will increase your chances of success in the NEET exam. Regularly reviewing and practicing these topics can improve your overall score. Getting help from a reputable coaching center can clarify complex topics and boost your performance. IIB Career Institute is one of the best NEET coaching institutes in Maharashtra, helping you prepare and perform well in the exam. Join this coaching center to elevate your performance and score in NEET.

NEET Study Materials 2025

NEET Study Materials 2025
NEET Full Study Material	NEET Mock Test
NEET Previous Year Question Paper	NEET Revision Notes for Chemistry
NEET Revision Notes for Physics	NEET Revision Notes for Biology
NEET Mock Test Series 2025