NEET asks 180 questions. They do not come out of the syllabus evenly — a handful of chapters turn up in every single paper, and some turn up once in five years. We counted all 960 questions from the last five NEET papers, chapter by chapter, so you can see exactly where the marks are before you decide what to study next.

How we counted

One paper per year, five years, every printed question given one main chapter. Mixed questions are counted once, under the chapter the question is really testing.

The paper changed size in 2025, from 50 questions a subject to 45. Five questions out of 50 is 10 per cent; five out of 45 is 11.1 per cent. So we work out each chapter's share inside its own year first, then average the five years, then convert back into today's 45 / 45 / 90 format. That is why the tables below say things like 2.7 questions a paper — it is what the five-year record works out to in the paper you will actually sit.

For 2026 we use the 21 June re-examination . The cancelled May paper is left out, and so are additional sittings, so no year gets counted twice. Every chapter is also checked against the official NEET (UG) syllabus, so nothing in these tables is a topic that has already been removed.

Biology chapter-wise weightage

Biology is 90 questions and 360 marks — half the paper, and the half you can be most accurate in. 42 of those 90 questions come from just 10 chapters (47 per cent) , which is why Biology is always where a serious plan starts.

The five biggest Biology chapters

1. Molecular Basis of Inheritance 5.5 questions · about 22 marks
2. Biotechnology: Principles & Processes 4.8 questions · about 19 marks
3. Cell: The Unit of Life 4.8 questions · about 19 marks
4. Human Reproduction 4.3 questions · about 17 marks
5. Human Health & Disease 4.2 questions · about 17 marks

Chemistry chapter-wise weightage

Chemistry is 45 questions and 180 marks , and it is the most evenly split of the three: Physical, Organic and Inorganic are all close in weight. The top 10 chapters carry 27 of 45 questions (59 per cent) .

The five biggest Chemistry chapters

1. Coordination Compounds 3.7 questions · about 15 marks
2. Aldehydes, Ketones & Carboxylic Acids 3.2 questions · about 13 marks
3. Organic Chemistry: Basic Principles, Isomerism & Techniques 3.1 questions · about 12 marks
4. Chemical Bonding & Molecular Structure 2.8 questions · about 11 marks
5. d- and f-Block Elements 2.4 questions · about 10 marks

Physics chapter-wise weightage

Physics is 45 questions and 180 marks , and it is the subject where no small group of chapters carries the paper. The top 10 give 23 of 45 (50 per cent) — so the remaining 18 chapters are worth about 22 questions, roughly 88 marks. That is the single most common Physics mistake: skipping the small chapters because they look small.

The five biggest Physics chapters

1. Electrostatic Potential & Capacitance 2.7 questions · about 11 marks
2. Current Electricity 2.7 questions · about 11 marks
3. Units, Measurements & Experimental Skills 2.6 questions · about 10 marks
4. Semiconductor Electronics 2.6 questions · about 10 marks
5. System of Particles & Rotational Motion 2.3 questions · about 9 marks

Unit-wise weightage

Chapters group into units, and a unit can be heavy even when no single chapter inside it tops the table. If you plan only from a top-five chapter list, this is what you miss.

Biology by unit

Chemistry by unit

Physics by unit

Why weightage is not a promise

This is the part most weightage articles leave out. Here are six chapters across the five papers. Same chapter, very different years.

Molecular Basis of Inheritance gave 9, 7, 6 and 7 questions — then 2. Cell: The Unit of Life went the other way, 2 up to 7. Coordination Compounds sat at 2 for two years and then gave 6. Current Electricity fell from 5 to 1.

How to turn this into a study plan

1. Biology first, and all of it

At almost any target you have to cover the whole of Biology. It is 360 of 720 marks and there is nowhere else to make them up. A student aiming at 550 typically scores 330 or more in Biology — that is not optional, it is the foundation the rest sits on.

2. Chemistry close behind

Chemistry is 180 marks spread almost evenly across three branches, so there is no “skip Physical” strategy. Organic is best learnt as connected reactions rather than a list, and Coordination Compounds has been the biggest single chapter in recent papers.

3. Physics is the subject you adjust

This is where your target actually changes the plan. If you are aiming at 650, you need almost all of Physics. If you are aiming at 550, you need about 95 of its 180 marks — and covering two-thirds of the chapters properly beats half-reading all 28. Pick the chapters you can be accurate in and own them.

4. Finish your weak chapters before December

Everyone has chapters they quietly avoid. They do not get easier by being left until March, when there is no time to repair them. Whatever you personally find hard — Rotational Motion, Organic conversions, Genetics problems — finish those first, while there is still room to go back over them.

5. Leave a buffer

Plan for 25 marks above your target. A tough question turns up in a chapter you prepared, you misread one, you lose a couple you should have had. A plan built to land exactly on your target leaves nothing for the day going slightly wrong.

Common questions

Vishnu’s Smart Info — NEET coaching for Andhra Pradesh and Telangana students.
Counts are from the five NEET papers listed above, classified question by question. 2026 means the 21 June re-examination. Institutes may differ by a question or two per chapter. This page does not predict rank or cut-offs.