NEET Chapter wise Weightage & Important Chapters for NEET 2021 | For cracking NEET, it is important that you know which are the important chapters for NEET and what is the chapter wise weightage of each chapter in NEET. With NEET important chapters in hand, you can focus more on those chapters. Chapter wise weightage for NEET tells us exactly which chapters carry more questions and accordingly more weight in the NEET examination. As such, don’t commit the mistake of taking these important chapters for NEET lightly or ignoring these chapters.
As NEET is a highly competitive exam, you cannot risk ignoring the important chapters and the chapters having more weightage in the NEET exam. Once you have familiarised yourself with the NEET syllabus and you know which important topics you need to prepare well, you should prepare strategically for cracking NEET; your preparation becomes easier, focussed and streamlined. In this article, CareerOrbits’ experts have analysed the chapter wise weightage for NEET 2021 which helps you to plan and manage your preparations for the NEET exam.
In the official syllabus for NEET, specific weightage is not assigned to any chapter. So, firstly and most importantly, you should cover each and every topic and chapter in NEET syllabus and clear your basics in all the chapters and not just the important chapters for NEET.
Based on the analysis of the previous year NEET question papers, we are providing a list of all the important chapters for NEET and the chapter wise weightage in every subject in NEET.
First, let’s have a look at the distribution of marks between Class 11 and Class 12 syllabus in the NEET exam.
Subject | Class XI | Class XII | Total | |||
No. of questions | Total Marks | No. of questions | Total Marks | No. of questions | Total Marks | |
Physics | 23 | 92 | 22 | 88 | 45 | 180 |
Chemistry | 23 | 92 | 22 | 88 | 45 | 180 |
Botany | 23 | 92 | 24 | 96 | 47 | 188 |
Zoology | 21 | 84 | 22 | 88 | 43 | 172 |
Total | 90 | 360 | 90 | 360 | 180 | 720 |


Important Chapters for NEET 2021
CareerOrbits’ experts have analysed previous year papers of NEET and prepared a list of all the NEET important chapters and topics in all the three subjects which you should practice and focus more on. Getting a hang of the NEET important topics helps you plan and strategise your preparation for NEET.
Most Important chapters for NEET 2021 Physics
- The most important topic for NEET Physics from class 11th syllabus is Mechanics. On an average 11-12 questions are asked from this important topic in NEET every year.
- Topics such as Semi-conductors, Heat and Thermodynamics, Laws of Motion, Kinematics, Work Energy & Power and Rotational Motion are also important and you need to practice thoroughly these important topics to score well in Physics in your NEET exam.
- Modern Physics, from class 12th syllabus, is the most important topic for NEET.
- Current Electricity & Magnetism, Electrostatics and Optics are also very important chapters for NEET 2021 and you should thoroughly prepare and practise these topics.
Most Important chapters for NEET 2021 Chemistry
Organic Chemistry chapters are important for NEET. This section carries more weightage in NEET exam. Your fundamentals and conceptual understanding in all the topics of Organic Chemistry should be essentially very strong. You should also practice the following important topics for NEET Chemistry thoroughly to develop your test-taking abilities and scoring well in the NEET exam:
- Equilibrium
- Chemical Bonding and Molecular structure
- Electrochemistry
- Chemical Kinetics
- Coordination Compounds
- Aldehydes, Ketones and Carboxylic Acids
- S, P, D and F Block Elements
- Hydrocarbons
- Atomic structure
Important chapters for NEET 2021 Biology
- Ecology is the most important topic for NEET Biology. On an average, 12-15 questions are asked in the NEET exam from this topic every year. This is an easy and the most scoring topic in biology.
- Human Physiology and Plant physiology are equally important topics for NEET 2021. Together around 20-25 questions are asked from these two topics in NEET exam. These most important topics demand clarity of concept, as more application-based questions are asked in the exam. You should prepare and practice these important topics thoroughly.
- Genetics & Evolution is another very important chapter for NEET. Evolution is very easy but you need to understand and practice the concepts in Genetics as much as possible.
- Cell structure & Function chapter also carries a good weightage in the NEET exam and as such is an important chapter.
- Another very important chapter for NEET is Biotechnology. This is a small topic, easy to understand but quite scoring.
NEET Chapterwise Weightage for NEET 2021
Based on expert analysis of past year question papers of NEET, weightage of chapter in NEET 2021 is expected as below.
NEET Physics Chapter wise weightage for NEET 2021
There would be total 45 questions in the Physics section of the NEET exam. NEET Physics weightage chapter wise that is expected in NEET 2021 exam (from Class 11th and 12th) is as below:
Class XI - Physics Chapters | |||
NEET Physics Chapters & Topics | NEET Physics Topic wise Questions | NEET Physics Marks Distribution | NEET Physics Weightage (%age) |
Physical World & Measurement | 2 | 8 | 4.44 |
Error and Analysis | 1 | 4 | |
Unit and Dimension | 1 | 4 | |
Kinematics | 2 | 8 | 4.44 |
Rectilinear Motion | 1 | 4 | |
Relative Motion | 1 | 4 | |
Laws of Motion | 5 | 20 | 11.11 |
Circular Motion | 4 | 16 | |
Laws of Motion | 1 | 4 | |
Work Energy & Power | 1 | 4 | 2.22 |
Motion of system of Particles and Rigid Body | 3 | 12 | 6.67 |
Centre of Mass | 1 | 4 | |
Rigid Body Dynamics | 2 | 8 | |
Gravitation | 2 | 8 | 4.44 |
Properties of Bulk Matter | 4 | 16 | 8.89 |
Fluid Mechanics | 1 | 4 | |
Properties of Matter | 1 | 4 | |
Surface tension | 1 | 4 | |
Thermal expansion | 1 | 4 | |
Kinetic Theory of Gases and Thermodynamics | 2 | 8 | 4.44 |
Oscillation and Wave | 2 | 8 | 4.44 |
NEET Physics Questions & Weightage from Class XI | 23 | 92 | 51.11 |
Class XII - Physics Chapters | |||
Electrostatics | 4 | 16 | 8.89 |
Current electricity | 3 | 12 | 6.67 |
Magentic Effects of Current & magnetism | 3 | 12 | 6.67 |
Electro Magnetic Induction | 2 | 8 | 4.44 |
Optics | 5 | 20 | 11.11 |
Dual Nature of Matter & Radiation; Atom & Nuclei | 3 | 12 | 6.67 |
Electronic Devices | 2 | 8 | 4.44 |
NEET Physics Questions & Weightage from Class XII | 22 | 88 | 48.89 |
NEET Physics Questions & Weightage from Class XI & XII | 45 | 180 | 100.00 |
The weightage distribution of the Class XI and Class XII Physics chapters as per the NEET exam is as under:


NEET Chemistry weightage Chapter wise for NEET 2021
The Chemistry section of the NEET exam comprises of 45 questions. This is furthur divided into Physical Chemistry, Onganic Chemistry and Inorganic Chemistry.
NEET Physical Chemistry
NEET Physical Chemistry Chapter wise weightage that is expected in NEET 2021 (from Class 11th and 12th) is as below:
NEET Physical Chemistry Chapters & Topics | NEET Physical Chemistry Topic wise Questions | NEET Physical Chemistry Marks Distribution | NEET Physical Chemistry Weightage (%age) |
Class XI: Physical Chemistry | |||
Some Basic Concepts of Chemistry | 1 | 4 | 5.88 |
Structure of Atom | 1 | 4 | 5.88 |
States of Matter: Gases & Liquids | 1 | 4 | 5.88 |
Thermodynamics | 2 | 8 | 11.76 |
Equilibrium | 2 | 8 | 11.76 |
Redox Reactions | 1 | 4 | 5.88 |
NEET Physical Chemistry Questions & Weightage from Class XI | 8 | 32 | 47.06 |
Class XII: Physical Chemistry | |||
Solid State | 1 | 4 | 5.26 |
Solutions | 2 | 8 | 10.53 |
Electrochemistry | 2 | 8 | 10.53 |
Chemical Kinetics | 2 | 8 | 10.53 |
Surface Chemistry | 2 | 8 | 5.26 |
NEET Physical Chemistry Questions & Weightage from Class XII | 9 | 36 | 52.94 |
NEET Physical Chemistry Questions & Weightage from Class XI & XII | 17 | 68 | 100.00 |
The weightage distribution of the Class XI & Class XII Physical Chemistry chapters as per the NEET exam is as under:


NEET Inorganic Chemistry
NEET Inorganic Chemistry Chapter wise weightage that is expected in NEET 2021 (from Class 11th and 12th) is as below:
NEET Inorganic Chemistry Chapters & Topics | NEET Inorganic Chemistry Topic wise Questions | NEET Inorganic Chemistry Marks Distribution | NEET Inorganic Chemistry Weightage (%age) |
Class XI: Inorganic Chemistry | |||
Classification of Elements and Periodicity in Properties | 1 | 4 | 6.67 |
Chemical Bonding and Molecular Structure | 2 | 8 | 13.33 |
Hydrogen | 1 | 4 | 6.67 |
s-Block Elements (Alkali and Alkaline earth metals) | 2 | 8 | 13.33 |
Some p-block elements | 2 | 8 | 13.33 |
Environmental Chemistry | 0 | 0 | 0 |
NEET Inorganic Chemistry Questions & Weightage from Class XI | 8 | 32 | 53.33 |
Class XII: Inorganic Chemistry | |||
General principles and processes of isolation of elements | 1 | 4 | 6.67 |
d and f Block Elements | 2 | 8 | 13.33 |
Coordination Compounds | 2 | 8 | 13.33 |
p-block elements | 2 | 8 | 13.33 |
NEET Inorganic Chemistry Questions & Weightage from Class XII | 7 | 28 | 46.67 |
NEET Inorganic Chemistry Questions & Weightage from Class XI & XII | 15 | 60 | 100.00 |


NEET Organic Chemistry
NEET Organic Chemistry Chapter wise weightage that is expected in NEET 2021 (from Class 11th and 12th) is as below:
NEET Organic Chemistry Chapters & Topics | NEET Organic Chemistry Topic wise Questions | NEET Organic Chemistry Marks Distribution | NEET Organic Chemistry Weightage (%age) |
Class XI: Organic Chemistry | |||
Some Basic Principles of Organic Chemistry | 2 | 8 | 15.38 |
Aromatic Compounds | 0 | 0 | 0 |
Hydrocarbons | 2 | 8 | 15.38 |
NEET Organic Chemistry Questions & Weightage from Class XI | 4 | 16 | 30.77 |
Class XII: Organic Chemistry | |||
Aldehydes, Ketones and Carboxylic Acids | 3 | 12 | 23.08 |
Bioloecules | 2 | 8 | 15.38 |
Polymers | 1 | 4 | 7.69 |
Chemistry in Everyday Life | 0 | 0 | 0 |
Alcohol, phenols and ethers | 2 | 8 | 15.38 |
Organic compounds containing nitrogen | 1 | 4 | 7.69 |
NEET Organic Chemistry Questions & Weightage from Class XII | 9 | 36 | 69.23 |
NEET Organic Chemistry Questions & Weightage from Class XI & XII | 13 | 52 | 100.00 |

NEET Chemistry Distribution of Marks & Weightage
NEET Chemistry Marks Distribution | NEET Chemistry Weightage (%age) | |||
Class XI | Class XII | Total | ||
Physical Chemistry | 32 | 36 | 68 | 37.78% |
Inorganic Chemistry | 32 | 28 | 60 | 33.33% |
Organic Chemistry | 16 | 36 | 52 | 28.89% |
Total | 80 | 100 | 180 | 100.00% |
44.44% | 55.56% | 100.00% |

NEET Biology Weightage Chapter Wise
Biology section in the NEET exam contains a total of 90 questions out of which you get 40-50 questions from Botany and 40-50 questions from Zoology. Knowing chapter wise weightage of Biology in NEET would help you plan your preparation better,
NEET Biology weightage Chapter wise - Botany Topics
NEET Biology weightage Chapter wise for Botany (from Class 11th and 12th) as expected in NEET 2021 is listed below.
NEET Botany Chapters & Topics | NEET Botany Topic wise Questions | NEET Botany Marks Distribution | NEET Botany Weightage (%age) |
Class XI - Botany Chapters | |||
Diversity in Living World | 4 | 16 | 8.51% |
Living World | 1 | 4 | |
Plant Kingdom | 1 | 4 | |
Biological classification | 2 | 8 | |
Structural Organisation in Animals & Plants | 4 | 16 | 8.51% |
Anatomy of Flowering Plant | 3 | 12 | |
Morphology in flowering plants | 1 | 4 | |
Cell Structure & Function | 7 | 28 | 14.89% |
Cell Cycle and Division | 2 | 8 | |
Cell: The unit of life | 5 | 20 | |
Plant Physiology | 8 | 32 | 17.02% |
Mineral Nutrition | 1 | 4 | |
Plant Growth and Development | 2 | 8 | |
Respiration in Plants | 2 | 8 | |
Transport in Plants | 3 | 12 | |
NEET Botany Questions & Weightage from Class XI | 23 | 92 | 48.94% |
Sexual Reproduction in flowering Plants | 4 | 16 | 8.51% |
Genetics & Evolution | 10 | 40 | 21.28% |
Principles of Inheritance and variation | 7 | 28 | |
Molecular basis of inheritance | 3 | 12 | |
Microbes in Human Welfare | 1 | 4 | 2.13% |
Ecology & Environment | 9 | 36 | 19.15% |
Biodiversity and Conservation | 3 | 12 | |
Ecosystem | 1 | 4 | |
Environmental Issues | 4 | 16 | |
Organisms and Population | 1 | 4 | |
NEET Botany Questions & Weightage from Class XII | 24 | 96 | 51.06% |
NEET Botany Questions & Weightage from Class XI & XII | 47 | 188 | 100.00% |

NEET Biology weightage Chapter wise - Zoology Topics
The expected chapter wise weightage in the NEET Biology section for Zoology topics is as below.
NEET Zoology Chapters & Topics | NEET Zoology Topic wise Questions | NEET Zoology Marks Distribution | NEET Zoology Weightage (%age) |
Class XI - Zoology Chapters | |||
Animal Kingdom | 2 | 8 | 4.65% |
Structural Organisation in Animal | 2 | 8 | 4.65% |
Biomolecules | 4 | 16 | 9.30% |
Breathing and exchange of gases | 1 | 4 | 2.33% |
Human Physiology | 12 | 48 | 27.91% |
Chemical Coordination | 2 | 8 | |
Digestion and Absorption | 2 | 8 | |
Excretory products and their elimination | 2 | 8 | |
Locomotion and Movement | 2 | 8 | |
Body Fluids and Circulation | 2 | 8 | |
Nervous System | 2 | 8 | |
NEET Zoology Questions & Weightage from Class XI | 21 | 84 | 48.84% |
Class XII - Zoology Chapters | |||
Reproduction | 6 | 24 | 13.95% |
Human Reproduction | 3 | 12 | |
Reproductive Health | 3 | 12 | |
Evolution | 3 | 12 | 6.98% |
Biology & Human Welfare | 8 | 32 | 18.60% |
Human Health and Disease | 4 | 16 | |
Microbes in Human Welfare | 3 | 12 | |
Strategies for Enhancement in Food Production 1 | 1 | 4 | |
Biotechnology | 5 | 20 | 11.63% |
Biotechnology and its application | 2 | 8 | |
Biotechnology and its processes and principles | 3 | 12 | |
NEET Zoology Questions & Weightage from Class XII | 22 | 88 | 51.16% |
NEET Zoology Questions & Weightage from Class XI & XII | 43 | 172 | 100.00% |

NEET Biology Distribution of Marks & Weightage | ||||
NEET Biology Marks Distribution | NEET Biology Weightage (%age) | |||
Class XI | Class XII | Total | ||
Botany | 92 | 96 | 188 | 52.22% |
Zoology | 84 | 88 | 172 | 47.78% |
Total | 176 | 184 | 360 | 100.00% |
48.89% | 51.11% | 100.00% |

Please note that you should not omit any chapter and prepare all the chapters, as all the chapters in the NEET syllabus are important. You should have more focus and achieve perfection in Mechanics (Physics), Organic Chemistry (Chemistry) and Ecology (Biology) as they are the most important topics for the NEET exam.
Do not miss out on other topics as they are also very important for scoring 600+ marks in NEET 2021 examination.
I am sure, if you have read this blog on how to crack NEET in first attempt, you would have learnt the technique. To practice the questions in all the important chapters for NEET 2021, you should consider opting for NEET Chapter Wise Question Bank, where you can practice all the questions which are categorized chapter wise for preparing for NEET examination.
You can also read the list of best books for NEET recommended by our experts.
If you have any questions or comments on NEET Important Chapters or Chapter wise weightage for NEET 2021, please feel free to send us your queries in the comments below. We would be happy to answer your queries.
Suggested Courses for NEET examination:
NEET Online Preparation Course (for class 12th students)
NEET Chapter wise Study Notes, Chapter wise Question Bank, Online Test Series with instant doubt clearance. This NEET preparation course is specially designed for students who only have one year to prepare for their NEET exams. |
NEET Online Repeater Dropper Course (Best course for NEET Repeaters and NEET droppers)
NEET Chapter wise Study Notes, Chapter wise Question Bank, Online Test Series. This is a special course for students who will repeat NEET or drop an year. |
NEET Question Bank
NEET Chapter wise questions with instant doubt clearance. Unique features such as Revision Lists 1, 2 and 3 to prepare 3X faster. Check out the NEET Question Bank for faster preparations. |
NEET Crash Course (for class 12th students)
NEET Chapter wise Study Notes, Chapter wise Question Bank, Online Test Series. The best NEET course for students who have limited time to prepare for NEET. |
NEET Online Preparation Course (for class 11th students)
NEET Chapter wise Study Notes, Chapter wise Question Bank, Online Test Series. The best NEET course for students who have 2 years to prepare for NEET. |
there is a variation in marks of botany and zoology...previously both the subjects are for 180 marks...but now botany is for 200 and zoology is for 160 according to the weightage...will this change occur in neet 2020 examination?
The total marks for Botany and Zoology put together would be 360, as confirmed in the latest offical notification also. NTA does not prescribe relative weightage of zoology or botany within the overall 360 marks. There could be variations year to year in the proportion of marks for Botany and Zoology.
This blog describes the expected weightage based on our expert analysis of the latest trends. The actual weightage of topics in NEET 2020 could be different from what is stated here in this blog.
As per the announcement NEET, JIPMER and AIIMS are merged. So, will the questions be purely based on NCERT, nothing out from NCERT?? Will biology and chemistry questions not be asked from outside of NCERT??
Tejasvi, the announcement simply states that selection for JIMPER and AIIMS shall also be made through NEET. The announcement nowhere states that JIPMER and AIIMS admission tests have been merged into NEET.
If you look minutely, there's a lot of difference in the question that you have asked and the announcement made by the Govt. In case the tests are merged, yes obviously there could have emerged a new pattern, probably accommodating the difficulty levels of AIIMS and JIPMER too. But the simple announcement is that selection for AIIMS & JIPMER would also be through NEET.
So, we expect that there would be not much changes in the level of questions or pattern of questions in NEET 2020. This should largely conform to the difficulty levels and pattern as per NEET 2019, with may be, minor variations.
Hi,
To crack NEET, you need to focus on practising maximum questions. You should prepare from the NEET Online Preparation Course 2020. This course helps you prepare atleast 5 times faster. You can cover up all the topics of class 11 side by side. Prepare Class 12 chapters in sync with your school studies. Practice all the questions, leave none and clear all the revision lists.
Please watch this short video to know this course helps you crack NEET. Please feel free to contact us for further information or assistance.
Hi Prasanna,
Normally, the questions are not repeated in the NEET exam. It is advised that you complete the syllabus thoroughly and prepare these NEET Important chapters for the neet exam.
Hey Anwesa,
These important chapters for NEET and their respective weightage for NEET is just an indication about which chapters will need more attention from you. To gain 600+ marks in NEET, you will need to prepare the whole syllabus thoroughly. The list of important chapters for NEET and their chapter wise weightage only helps you understand the pattern from the previous NEET examinations.
Please work on finishing the complete syllabus. Also, if you need to prepare at least 4 to 5 times faster for NEET-UG, you should opt for one of the online NEET Preparation Courses.
Hi Shivani,
These last few months are very crucial for your success in NEET. You should focus on solving questions related to these important chapters. But don't ignore other chapters. You should be aware of all the concepts in the syllabus. Check out the NEET Crash Course to get questions according to the chapterwise weightage in NEET.
Thank you so much sir for list of all the important chapters for NEET. But I’m very weak in Physics. I want to score above 600 in NEET 2020. Please help me!
Hi Nikita,
Your concepts need to be really strong in Physics. You need to practice maximum questions to strengthen your concepts. Focus on the important chapters given above along with other chapters. Have a look at the NEET Online Preparation Course where you will get NEET level questions according to the chapterwise weightage in NEET.
Thank you sir for providing all the important chapters for NEET. Can you tell me some good books to prepare for NEET 2020?
Hi Gaurav,
You can check out the NEET Online Preparation Course. All the important topics have been covered in the course according to the chapterwise weightage in NEET. Also please watch this video to know how you should prepare for NEET to score 600+.
Hi Neha,
Neither there is any defined syllabus for AIIMS nor the exam paper is available. You have to prepare yourself in every aspect. Prepare all these important chapters thoroughly along with remaining chapters.
Hi Jaspreet,
You need to practice question based on these important chapters to crack NEET. The most powerful course for repeaters is our NEET Repeater Dropper Course. Important questions are given in every chapter as per the chapterwise weightage in NEET. Practice all the questions given int his course and clear all your revision lists to score 600+ in NEET.
Hi Arushi,
Our experts have listed these important topics and chapterwise weightage based on the analysis of previous year NEET papers. To crack NEET with 600+ score, you need to cover all the topics. However, you should focus more on the important chapters listed above and these chapters should be on your tips.
NEET exam will now be conducted by NTA instead of CBSE. So, are these important chapters and chapterwise weightage relevant for 2020?
Hi Priyanka,
As per the latest notification of NTA for NEET, there is no change in the syllabus or the pattern of the exam. So, you can follow these important chapters and chapterwise weightage for NEET 2020.
Sir, if i complete these important chapters, will I get good marks in NEET 2020? I want to get at least 600. Would I be able to achieve the desired score.
Hi Srijeet, You would be able to score the desired marks in NEET 2020. For achieving the score, you need to practice questions based on the important chapters for NEET as well as prepare the remaining chapters too. These chapters have been marked important as they have carried more weightage in the previous examinations.
Is this NEET weightage applicable for the upcoming NEET 2020 examination? Where can I prepare questions based on these important NEET chapters?
The weightage of the chapters is an indicator of importance of the chapter in the NEET examinations. Over the past years we have seen that these chapters carry more weightage in the NEET examinations.
To practice questions based on the important chapters, you should go for the
NEET Online Preparation Course that consists of all the questions relevant for the NEET examination. You will also be able to instantly clear your doubts on these questions.