The 20% topics that give 80% of total marks in NEET 2025 include chapters from Physics, Chemistry and Biology like Reproduction, Plant Physiology, Atom, SP Block, Modern Mechanics, Thermodynamics etc.

The 20% topics that give 80% of total marks in NEET 2025 include chapters like Reproduction, Kinematics, Mole Concept and Plant Physiology among others. The 80/20 Rule in NEET 2025 is a highly effective strategy for exam preparation. It suggests that by covering 20% exam syllabus, students can aim for 80% of exam results. The high yield Physics chapters are Thermodynamics, Modern Physics and Mechanics while Chemistry chapters are GOC, Hydrocarbon, Carbon and its Compound, Atom, Periodic Table, Alcohol, Phenol & Ether. For Biology, the topics that students can focus on are Human Physiology, Genetics, Ecology, Morphology & Autonomy of Plants and Animals, Reproduction and Plant Physiology.
Students must invest most time studying the aforementioned topics to get maximum results in the NEET 2025 Exam with less effort. Questions from these 20% topics not only carry the most weight but are also more likely to appear in the exam. Scroll down and explore the 20% of topics that students should study to get a good score in NEET UG 2025.
List of 20% Topics that Give 80% of Total Marks in NEET 2025
Biology is the highest-scoring subject in NEET as it contributes 50% of the total marks and total questions in the exam. Out of 180, 90 questions are from Biology which means out of 720, 360 marks can be acquired by simply perfecting Biology. Chemistry has Physical and Inorganic Chemistry and it contributes equal weightage as Physics. Here are the 20% Topics that Give 80% of Total Marks in NEET 2025:
NEET Topics | Weightage (%) |
---|---|
Biology | |
Molecular Basis of Inheritance | 14% |
Principles of Inheritance and Variation | 10% |
Cell Cycle and Cell Division | 9% |
Animal Kingdom | 13% |
Biotechnology - Principles and Processes | 12% |
Biomolecules | 10% |
Chemistry | |
Aldehydes, Ketones and Carboxylic Acids | 9% |
Hydrocarbons | 7% |
Chemical Bonding and Molecular Structure | 7% |
The p-Block Elements | 6% |
Equilibrium | 6% |
Redox Reactions | 8% |
Physics | |
Current Electricity | 10% |
Ray Optics and Optical Instruments | 9% |
Rotational Motion | 6% |
Laws of Motion | 10% |
Electromagnetic Induction & Alternating Current | 8% |
Thermodynamics | 7% |
Physics Topics that Give 80% of Total Marks in NEET 2025
Physics is often considered one of the toughest subjects in the NEET syllabus. By merely perfecting these high scoring topics students are likely to get a better score in NEET UG 2025:
Physics Topics | Weightage (%) |
---|---|
Moving Charges and Magnetism | 5% |
Electromagnetic Induction | 3% |
Mechanical Properties of Fluids | 3% |
Electromagnetic Waves | 3% |
Rotational Motion | 6% |
Oscillations | 3% |
Ray Optics and Optical Instruments | 6% |
Kinetic Theory of Gases | 3% |
Dual Nature of Radiation and Matter | 3% |
Gravitation | 3% |
Current Electricity | 10% |
Semiconductor Electronics: Materials, Devices and Simple Circuits | 5% |
Units and Measurements | 5% |
Work Energy and Power | 3% |
Electric Charges and Fields | 3% |
Atoms | 3% |
Nuclei | 4% |
Motion in a Plane | 3% |
Electrostatic Potential and Capacitance | 5% |
Alternating Current | 4% |
Motion in a Straight Line | 3% |
Chemistry Topics that Give 80% of Total Marks in NEET 2025
These topics in Chemistry are expected to give 80% of total marks in NEET UG 2025:
Chemistry Topics | Weightage (%) |
---|---|
Organic Chemistry: Some Basic Principles and Techniques | 5% |
Alcohols, Phenols and Ethers | 4% |
Structure of Atom | 4% |
Thermodynamics | 5% |
Electrochemistry | 5% |
Hydrocarbons | 7% |
The p-Block Elements (XII) | 6% |
The p-Block Elements | 6% |
Chemical Bonding and Molecular Structure | 7% |
Equilibrium | 6% |
Chemical Kinetics | 5% |
Biomolecules | 4% |
Haloalkanes and Haloarenes | 4% |
Solutions | 4% |
Some Basic Concepts of Chemistry | 4% |
Coordination Compounds | 5% |
Aldehydes, Ketones and Carboxylic Acids | 9% |
Amines | 5% |
The d and f-Block Elements | 6% |
Biology Topics that Give 80% of Total Marks in NEET 2025
These high yield Biology topics can be covered to get 80% of total NEET 2025 marks:
Topics | Weightage (%) |
---|---|
Biodiversity and Conservation | 4% |
Anatomy of Flowering Plants | 7% |
Cell: The Unit of Life | 5% |
Respiration in Plants | 4% |
Microbes in Human Welfare | 4% |
Cell Cycle and Cell Division | 9% |
Molecular Basis of Inheritance | 14% |
Principles of Inheritance and Variation | 10% |
Sexual Reproduction in Flowering Plants | 6% |
Ecosystem | 4% |
Morphology of Flowering Plants | 6% |
Plant Growth and Development | 6% |
Plant Kingdom | 7% |
Organisms and Populations | 4% |
Photosynthesis in Higher Plants | 4% |
Structural Organisation in Animals (Animal Tissues) | 8% |
Locomotion and Movement | 6% |
Body Fluids and Circulation | 5% |
Evolution | 6% |
Biomolecules | 10% |
Human Reproduction | 6% |
Breathing and Exchange of Gases | 4% |
Excretory Products and their Elimination | 5% |
Reproductive Health | 8% |
Biotechnology - Principles and Processes | 12% |
Human Health and Disease | 6% |
Biotechnology and its Applications | 7% |
Animal Kingdom | 13% |
Chemical Coordination and Integration | 4% |
How to Study 20% Topics to Get 80% Result in NEET Exam
Students must have a specific strategy and a roadmap while implementing the 80/20 rule in NEET 2025 exam preparation. Here are some quick tips and tricks to study 20% topics to get 80% result in the exam.
- Identify 20% Topics: Students need to identify the 20% topics from each subject of NEET 2025 Syllabus .
- Set Clear Goals: They must set clear goals for targeted study in the NEET exam. If students have clarity regarding their target marks, topics and the time required for them to study them, they will be able to prepare faster.
- Create a Realistic Timetable: Students need to have a realistic study timetable to prepare for the exam. Having a doable timetable will help them set a routine without burning out and study in numerous shifts.
- Take Study Breaks: Students must take necessary breaks in the middle of studying. It will help students to relax and rejuvenate in between studying. Taking breaks in between preparations helps the mind to process the studied topics while creating space for focused preparation.
- Prioritize Important Topics: Students must prioritise the high-weightage and important topics that they find difficult to study. They must break important topics into chunks and study to get a grip on the concepts.
- Revise Actively: Students must revise actively to get good scores in the examination. When students revise they must summarise big topics, use flashcards, and break down concepts that will help them to learn better.
- Practice Mock Papers: Students must actively practice the NEET 2025 mock test , previous years' papers, and sample papers to understand exam difficulty levels. Consistently practising will help students to get a good hold on the topics and stress lessons on the exam day.
- Stay Consistent: Students need to stay consistent with their preparation. By staying consistent students can get to track their progress while evaluating their strengths and weaknesses.
- Stay Motivated: It is very important to maintain a healthy lifestyle and stay motivated during their preparation. There may be scenarios where students may face issues or failure but that must not affect their mental health. They must cultivate a healthy body and mind while working on their overall preparations.
- Seek Guidance: Students must take regular feedback from their mentors and teachers while they prepare. Taking regular feedback will help students to improve with time and work on their weaknesses.
Studying 20% of topics that give 80% of total marks in NEET 2025 is a powerful strategy to get a Good Score in NEET 2025 . To succeed, students should stick to NCERT, practice last years' papers, solve sample papers, take mock tests and revise regularly. With a smart approach, a realistic time-table and a clear mind students can achieve a top rank in NEET UG and secure a medical seat.
Are you feeling lost and unsure about what career path to take after completing 12th standard?
Say goodbye to confusion and hello to a bright future!
FAQs
Students must set clear goals, have a proper study plan and stay consistent with their exam preparation. They must build a realistic timetable and practice mock papers, sample papers, and previous year's question papers. They must analyse their strengths and weaknesses and analyse their overall performance while revising the topics during exam preparation.
Students instead of panicking at the last minute must study 20% of topics to get good scores in the exam. It's a very focused strategy that will help students not only prepare the entire syllabus on time but also score 80% of the total marks by not putting in much effort. Studying 20% of topics will help students to prepare in no time and get time for revision for the exam.
There are numerous topics in the NEET syllabus 2025 that have high weightage and questions are asked from those topics. The 20% topics that give 80% of the total marks in NEET 2025 include chapters like reproduction, plant physiology, atom, SP block, modern mechanics and so on.
NEET Previous Year Question Paper
Was this article helpful?




Similar Articles
Tamil Nadu NEET Cutoff 2025 (Expected): Check Closing Ranks for MBBS/BDS Admission
NEET MDS 2025 Exam Day Instructions: Documents Required, Guidelines, Do's and Don'ts
Most Repeated Questions in NEET Exam: Overall & Subject-wise
Most Repeated Questions in NEET Physics
Most Repeated Questions in NEET Biology
NEET 2025 Cutoff for Deemed Universities