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Chapter-wise notes for Physics, Chemistry and Biology — written to carry the full concept, not just the definition. Labelled diagrams, worked examples and solved questions in every PDF. Built for NEET and Class 11–12 boards.
Physics
20 chaptersMechanics through modern physics — derivations shown step by step, with solved numericals in every chapter.
Class 11 · 11 chapters
Class 12 · 9 chapters
Chemistry
19 chaptersPhysical, inorganic and organic — mechanisms drawn out in full, with reaction pathways you can actually follow.
Class 11 · 9 chapters
Class 12 · 10 chapters
Biology
28 chaptersThe full NEET Biology syllabus — every process explained from first principles, with labelled diagrams throughout.
Class 11 · 15 chapters
Class 12 · 13 chapters
Questions
Are these notes free to download?
Yes. Every chapter PDF on this page is free — no sign-up, no payment. Download the ones you need or take the full archive.
Do these cover the full NEET and board syllabus?
They cover the complete current Class 11 and 12 syllabus across all three subjects — 67 chapters in total. Use them for concept building, then do a quick NCERT pass before your exam for exact wording and diagram labels, and spend the rest of your time on previous year questions.
Can I use these for boards as well as NEET?
Yes. The syllabus overlaps heavily, and these notes are written to build the concept properly rather than to fit one exam format. For boards, pair them with a read of the NCERT exercises.
What's inside each chapter PDF?
Full theory explained concept by concept, labelled diagrams, worked examples with the reasoning shown, detailed question-and-answer sections, and a quick-revision table at the end. Every chapter runs 20 pages or more.
Where do I get the one-shot videos?
On the NeetJeeRankers YouTube channel — chapter one-shots that pair with these notes. The red bar at the bottom takes you straight there.
How to use these notes
Sixty-seven chapters is a lot of material, and the order you work through them matters as much as the hours you put in. What follows is the approach that has worked best for the students these notes were originally written for.
Read NCERT first, then the notes
These chapters are compression, not replacement. Meeting a concept for the first time inside a condensed page gives you the summary without the reasoning behind it, and that falls apart the moment a question changes its framing. This is especially true for Biology, where NEET questions are often drawn close to NCERT's own wording, diagrams and examples.
Give the three subjects different treatment
- Physics rewards working problems, not reading them. Derivations should be reproduced from a blank page rather than re-read. Mechanics and Electrodynamics dominate the paper, so they deserve the most practice time.
- Chemistry splits three ways. Physical behaves like Physics and is formula-driven. Inorganic rewards organised memory, but its trends are explainable rather than arbitrary. Organic is pattern recognition built on carbocation and radical stability.
- Biology carries the largest share of NEET marks, so it usually decides the rank. Genetics and Evolution, Human Physiology, Cell Biology and Ecology together account for a large part of it and deserve the first revisions.
Close the book and write the skeleton
After finishing a chapter, write down its headings and the two or three formulas or mechanisms under each, from memory. Whatever you cannot recall is exactly what needs revising. This takes four minutes and does more than an hour of re-highlighting, because recall builds retention in a way that re-reading does not.
Revisit on day three and day ten
A chapter read once decays fast. Two short revisits, spaced a few days apart, hold far better than one long session. Keep a simple list of chapter names against the date you last revised each — it takes a minute to maintain and it stops the weaker chapters from quietly slipping out of rotation.
Move to questions before you feel ready
Waiting until a chapter feels finished usually means waiting forever. Attempt the practice set while parts are still shaky, because the mistakes tell you precisely which sub-topic to reopen. Then work through previous year papers, which show you the level and framing the exam actually uses rather than the level you imagine it uses.