Textbooks are thorough, but thorough isn't always what helps two weeks before an exam. These notes exist for the opposite reason — to strip Class 11 and Class 12 Chemistry down to what actually needs to be remembered, in a form you can glance through in twenty minutes instead of two hours. S.K. Sir built them the same way he builds a live class: concept first, memorisation only where memorisation genuinely can't be avoided. Every set below is free, downloadable without any signup wall in the way, and organised the same way he'd actually recommend revising the subject.
The NEET syllabus is genuinely large, and trying to reread the entire Class 11 and Class 12 NCERT textbooks cover to cover in the final month is neither realistic nor a particularly good use of that time. Getting to a rank-boosting score of 170 or more in Chemistry needs revision material that's actually precise, not just comprehensive for the sake of it. That's the gap these notes are built to close, and it's a genuinely different problem from the one a full textbook is trying to solve — a textbook wants to teach you the subject once, properly; these notes want to help you remember it correctly, quickly, for the third or fourth time. Most students only realise how different those two goals are once they're a few weeks from the exam and reaching for a textbook out of habit, even though a textbook was never built for that moment.
S.K. Sir, an M.Sc. Gold Medalist with over 18 years of teaching experience, put these together the way he'd want a student to actually use them, not the way a publisher formats a reference book. Hundreds of pages of theory get condensed into high-yield bullet points, mnemonic charts, and reaction flow diagrams that are genuinely quick to read and, more importantly, easy to retain under exam pressure. Nothing here is outsourced or templated from a generic study material vendor — every set traces back to the same classroom notes he actually teaches from.
NCERT is still the unquestioned foundation for NEET preparation, and nothing here is meant to replace it. But it's written in narrative prose, which is excellent for learning a concept the first time and genuinely frustrating for rapid revision two days before a mock test. Important exceptions and specific data points tend to sit buried inside long paragraphs, easy to skim past without registering, particularly under the kind of time pressure most students are revising under by the time exam season actually arrives. These notes pull that material out and lay it out in the order it's actually needed, flagging the exact lines and tables the NTA has historically built tricky questions around.
Different stages of preparation call for different kinds of material, so the archive is split into a few categories rather than one generic PDF per chapter:
Honestly, no — and we'd rather say that upfront than let a free PDF quietly imply otherwise. Notes work best as a compression tool for something you've already learned, whether that's through S.K. Sir's live classes, your own reading, or another teacher entirely. Used to revise material you understand, they save enormous amounts of time. Used as a first introduction to a topic you've never studied, they'll feel like a list of facts with no explanation behind them, because that's essentially what they are once separated from the teaching that normally goes with them. Think of them less as a shortcut around learning Chemistry and more as a shortcut around forgetting it again after you already have.
It's a fair question, and the honest answer is fairly simple: a student who's already used these notes and found them genuinely useful is a much easier person to have a conversation with about our actual courses than a stranger who's only seen an advertisement. We'd rather let the notes speak for the teaching quality directly than describe it in marketing copy. There's no catch buried in the download, no watermark nagging you to upgrade, and no artificial limit on how much of the archive you can access without paying — if that changes how some students think about eventually enrolling with us, that's a reasonable trade from where we're sitting. Plenty of students use these notes for a full year or more without ever enrolling in anything, and that's genuinely fine with us too.
A search for free NEET Chemistry notes turns up a genuinely enormous amount of material, and most of it is fine, if a little generic — scanned photocopies, notes written for a slightly different syllabus, or PDFs assembled by combining several other PDFs without much editorial judgment about what's actually worth keeping. These notes are different mainly in that one person, teaching this exact syllabus for close to two decades, decided what belongs in them and what doesn't. That's a smaller, more opinionated set of material than a generic archive, and that's deliberate — the goal was never to be the most comprehensive free resource online, just the most useful one to actually revise from. A shorter, well-chosen set of notes tends to get used far more consistently than a sprawling one that looks impressive but never quite gets opened.
Pick a section below to get started. These are the most-requested chapters across all three sections — the full archive covers every chapter in the NEET Chemistry syllabus, accessible through the "View All" links under each subject. Plan to revise each set at least three times before a grand mock test; a single read-through rarely sticks the way three shorter passes do, and spacing those passes out over a few weeks tends to work better than cramming all three into a single weekend.
Every note set gets reviewed and updated whenever the NEET syllabus itself changes, so you're never revising from a PDF that's quietly fallen a syllabus cycle or two out of date. If a chapter you need isn't listed above, the full archive under "View All" almost certainly has it — and if it genuinely doesn't, that's worth telling us, since it usually means we've missed something worth adding.
Downloading a PDF doesn't, on its own, move a score. What actually helps is a fairly specific sequence: attend a live class first to understand the logic behind a concept, read the relevant NCERT chapter properly once, and only then open these notes. Skipping straight to the notes without that foundation tends to produce recognition without real understanding, which falls apart the moment a question is phrased slightly differently than expected — and NEET Chemistry questions are phrased differently than expected more often than most students would like.
After that foundation is in place, the notes are for repeated, iterative revision rather than a single pass. Most students do well setting aside 30 minutes every weekend to glance through the mind maps instead of rereading an entire textbook chapter. For Physical Chemistry notes, try covering the formula and deriving it mentally before checking. For Organic Chemistry notes, trace the electron flow through each mechanism in the flowcharts rather than just reading the arrows. For Inorganic Chemistry notes, spend real time on the highlighted exceptions specifically, since they tend to be exactly where the NTA likes to hide a trap that a straightforward reading of the rule wouldn't catch. None of this needs to happen every day — a consistent weekly rhythm tends to beat sporadic, longer sessions squeezed in whenever time allows.
These notes are supplementary tools, not a replacement for structured teaching or for testing yourself under real conditions. For the fullest benefit, pair them with an actual mock test series, so what looks familiar on a printed page gets tested the way it'll actually be tested — under a clock, with negative marking, and without the notes open beside you for reference.
The most common misuse we see is treating notes as a substitute for practice — reading the same mind map four times in a week without ever attempting a single question tied to it. Recognising a concept on a page and applying it inside an actual NEET question are two different skills, and only practice tests the second one. Notes earn their value in the five minutes before you attempt a problem set, not as a passive activity on their own. If you notice you've read a chapter's notes more times than you've actually solved problems from that chapter, that ratio is usually worth correcting before moving on to the next topic.
A few questions come up often enough in the download requests we get that they're worth answering here directly.
Whichever chapter you're revising right now in your own study plan is the right place to start — these notes aren't meant to be worked through in a fixed order like a textbook. If you're genuinely unsure where to begin, the Previous Year Trend Sheets are a reasonable first download, since they'll show you which chapters are worth the most marks relative to the time they take to revise.
Yes. Every set gets reviewed against the current NTA syllabus each year, and anything that's changed gets revised rather than left as-is from a previous cycle. We'd rather pull an outdated PDF down entirely than leave it live with a chapter that no longer matches the actual exam.
No. Everything on this page is free and available to anyone, whether or not you're currently a student with us. We'd obviously be glad to have you in a batch eventually, but that's not a condition for downloading, and there's no trial period or watermark limiting what you get for free.
Yes, largely. Enrolled students get some additional material tied specifically to their batch's pace and testing schedule, along with live doubt support around the notes and access to a mentor who can explain anything that isn't clear, but the core chapter notes, mind maps, and formula sheets are the same ones shared here.
Every set is a standard, printable PDF, formatted to stay readable whether you're reading on a phone screen during a commute or printing it out for physical revision at a desk. No special software or app is needed to open any of them.
New chapters and updated versions get added throughout the year, though the bulk of the archive is already complete across all three sections. If something specific is missing or looks outdated, the contact form on this site is the fastest way to ask for it directly rather than waiting for the next scheduled update, and we do read those requests.
The kit sent by email bundles everything into a single combined file, along with five additional mock tests not listed individually on this page, so it's more of a convenience bundle than a separate resource — the underlying content largely overlaps with what you'd get downloading each section individually above.
No. Downloading a chapter set doesn't add you to a marketing list. The email kit further down this page is opt-in and separate, and even that stays limited to the material you actually signed up for rather than turning into a recurring newsletter you didn't ask for.
If you've made it this far, you've probably got a specific chapter in mind already. Go ahead and grab it from the section above, or, if you'd rather have the whole archive in one place instead of downloading chapters one at a time over the next few weeks, the combined kit below covers everything in a single file, updated on the same schedule as the individual chapter downloads.
Enter your email to receive a single, combined PDF containing every chapter, every formula sheet, and 5 exclusive mock tests not available anywhere else on this page, delivered straight to your inbox within a few minutes. No payment details needed, and no obligation to enrol in anything to keep the download.