NEET Chemistry Notes 2027: Unit-Wise PDF Download and Revision Guide
eSaral Academic and Editorial Team
Summary
NEET Chemistry Notes 2027 by eSaral: unit-wise revision notes PDFs arranged by the NMC syllabus, key formulas, the units that carried the most questions in NEET 2026, previous year papers and a revision plan, with FAQs for NEET aspirants.
Looking for NEET Chemistry Notes that follow the current syllabus? This page arranges the notes by the 20 units of the NMC NEET syllabus (8 Physical, 4 Inorganic and 8 Organic), so that you can revise unit by unit, download the PDF of each unit that is ready, and keep the key formulas at hand. Chemistry carries 45 questions and 180 marks in NEET, which is a quarter of the paper, and it rewards a clear understanding of NCERT. Use the NEET Chemistry Notes below along with the NCERT chapters, and not in place of them.
NEET Chemistry Notes at a Glance
Item | Details |
|---|---|
Questions in NEET Chemistry | 45 |
Marks | 180 out of 720 (25% of the paper) |
Syllabus units | 20: Physical 8, Inorganic 4, Organic 8 |
Source of questions | NCERT Class 11 and Class 12 |
Class 11 and Class 12 split in NEET 2026 Chemistry | 22 and 23 questions |
For the full unit list with topics, see eSaral’s NEET Chemistry syllabus page. The NEET 2027 syllabus has not been revised separately, and the NMC syllabus of 2026 is the one to follow.
NEET Chemistry Notes PDF: Unit-Wise Download
Click “Download PDF” to open the notes of a unit. The notes of the remaining units are being added, so check this page again.
Unit | Name | Branch | What the notes cover | Notes |
|---|---|---|---|---|
1 | Some Basic Concepts in Chemistry | Physical | Mole concept, stoichiometry | |
2 | Atomic Structure | Physical | Bohr model, quantum numbers, orbitals | Coming soon |
3 | Chemical Bonding and Molecular Structure | Physical | VSEPR, hybridisation, molecular orbital theory | Coming soon |
4 | Chemical Thermodynamics | Physical | Enthalpy, Hess’s law, entropy, Gibbs energy | Coming soon |
5 | Solutions | Physical | Concentration terms, Raoult’s law, colligative properties | |
6 | Equilibrium | Physical | Kc and Kp, ionic equilibrium, pH, buffers | |
7 | Redox Reactions and Electrochemistry | Physical | Oxidation number, cells, Nernst equation (the PDF covers Electrochemistry) | |
8 | Chemical Kinetics | Physical | Rate law, order, Arrhenius equation | |
9 | Classification of Elements and Periodicity in Properties | Inorganic | Periodic trends | |
10 | p-Block Elements | Inorganic | Groups 13 to 18, general trends | |
11 | d- and f-Block Elements | Inorganic | Transition elements, lanthanoids, actinoids | Coming soon |
12 | Coordination Compounds | Inorganic | Nomenclature, bonding theories, isomerism | |
13 | Purification and Characterisation of Organic Compounds | Organic | Separation methods, qualitative and quantitative analysis | Coming soon |
14 | Some Basic Principles of Organic Chemistry | Organic | IUPAC naming, isomerism, electronic effects | Coming soon |
15 | Hydrocarbons | Organic | Alkanes, alkenes, alkynes, aromatic compounds | Coming soon |
16 | Organic Compounds Containing Halogens | Organic | Haloalkanes, haloarenes | Coming soon |
17 | Organic Compounds Containing Oxygen | Organic | Alcohols, phenols, ethers, aldehydes, ketones, acids | Coming soon |
18 | Organic Compounds Containing Nitrogen | Organic | Amines, diazonium salts | Coming soon |
19 | Biomolecules | Organic | Carbohydrates, proteins, vitamins, nucleic acids | Coming soon |
20 | Principles Related to Practical Chemistry | Organic | Functional-group tests, salt analysis, titrations | Coming soon |
Important Formulas for NEET Chemistry Notes
Keep these formulas on one page next to your NEET Chemistry Notes, and revise them every week. They follow the units above.
Topic | Formula |
|---|---|
Molarity | $M = \dfrac{\text{moles of solute}}{\text{volume of solution in L}}$ |
Mole fraction | $\chi_A = \dfrac{n_A}{n_A + n_B}$ |
Bohr energy of the hydrogen-like atom | $E_n = -13.6\,\dfrac{Z^2}{n^2}\ \text{eV}$ |
de Broglie wavelength | $\lambda = \dfrac{h}{mv}$ |
Gibbs energy | $\Delta G = \Delta H - T\Delta S$ |
Relation of $K_p$ and $K_c$ | $K_p = K_c\,(RT)^{\Delta n}$ |
pH | $\text{pH} = -\log[H^+]$ |
Henderson-Hasselbalch equation | $\text{pH} = pK_a + \log\dfrac{[A^-]}{[HA]}$ |
Elevation of boiling point | $\Delta T_b = K_b\, m$ |
Osmotic pressure | $\pi = CRT$ |
Nernst equation (at 298 K) | $E = E^\circ - \dfrac{0.0592}{n}\log Q$ |
Rate law (example) | $\text{Rate} = k[A]^m[B]^n$ |
First-order rate constant and half-life | $k = \dfrac{2.303}{t}\log\dfrac{[A]_0}{[A]}$, $\ t_{1/2} = \dfrac{0.693}{k}$ |
Arrhenius equation | $k = Ae^{-E_a/RT}$ |
Spin-only magnetic moment | $\mu = \sqrt{n(n+2)}\ \text{BM}$ |
Which Units to Give More Time in NEET Chemistry Notes
In the NEET 2026 paper, the Chemistry chapters with the most questions were Coordination Compounds (5 questions), and Redox, Hydrocarbons, Electrochemistry and Carboxylic Acids and Amines (3 questions each). Mole Concept, the Periodic Table and Chemical Bonding followed with 2 questions each. One paper cannot predict the next, so use this to decide the order of your revision, and not to skip any unit. You can read the full breakdown in eSaral’s NEET 2026 paper analysis, and the older data in eSaral’s NEET Chemistry weightage page.
How to Revise With NEET Chemistry Notes
These steps work for every unit of the NEET Chemistry Notes:
- Read the NCERT unit first. NEET Chemistry follows NCERT, and a question can come from a single NCERT line.
- Use the notes of the unit for revision, and close them to recall the reactions, formulas and exceptions from memory.
- Practise Physical Chemistry formulas with numericals, and write the units of every answer.
- Learn Inorganic Chemistry from NCERT lines, with the trends and exceptions in a short list.
- For Organic Chemistry, make a one-page map of the reactions of each functional group, and revise the mechanisms of the basic units first.
- After each unit, solve its previous year questions, and note every wrong answer in an error log.
💡 Tip from the eSaral Academic Team: Keep a one-page “exceptions list” for Inorganic and Organic Chemistry. NEET often tests the one case that breaks a trend, and a short list that you read every few days is easier to remember than the full chapter.
NEET Previous Year Papers for Chemistry Practice
Solving NEET previous year papers shows how NCERT content is turned into questions. After you revise a unit, solve the Chemistry questions of that unit from the papers below.
Year | Question paper |
|---|---|
Re-NEET 2026 (21 June) | |
NEET 2026 (3 May) | |
Re-NEET 2024 | |
NEET 2024 | |
NEET 2023 | |
NEET 2022 | |
NEET 2021 | |
NEET 2020 | |
NEET 2019 |
The papers of all the years from 2019 to 2026 are on eSaral’s NEET question paper page, and the chapter-wise questions are on the chapter-wise NEET PYQ page.
More NEET Study Material
After these NEET Chemistry Notes, you can use the notes of the other subjects:
Why Use NEET Chemistry Notes
Benefit | How it helps |
|---|---|
Faster revision | A short unit note can be revised in much less time than the full textbook chapter |
Formulas in one place | The formula table above is a quick reference for Physical Chemistry |
Follows the current syllabus | The units are the 20 units of the NMC syllabus, so you do not spend time on topics that are not asked |
Last-month revision | Compact notes make it possible to go through the whole Chemistry syllabus again in the final weeks |
Frequently Asked Questions
Where can I download NEET Chemistry Notes PDF?
The unit-wise NEET Chemistry Notes PDFs are in the table on this page. Click “Download PDF” next to the unit. The notes of the remaining units are being added to the table by eSaral.
How many units are there in NEET Chemistry?
NEET Chemistry has 20 units in the NMC syllabus: 8 in Physical Chemistry, 4 in Inorganic Chemistry and 8 in Organic Chemistry. The NEET Chemistry Notes table on this page follows the same 20 units.
Which NEET Chemistry units should I revise first?
Start with the units that carried the most questions in NEET 2026: Coordination Compounds, Redox Reactions, Electrochemistry, Hydrocarbons, and Carboxylic Acids and Amines. Then cover the rest of the units, because all of them can appear in the exam.
How should I use NEET Chemistry Notes for revision?
Read the NCERT unit first, then revise from the notes, and close them to recall the key points from memory. After each unit, solve its previous year questions, and write your mistakes in an error log. eSaral suggests that you repeat this for every unit.
How many questions and marks does Chemistry have in NEET?
Chemistry has 45 questions and 180 marks out of 720 in NEET. Physics also has 45 questions and 180 marks, and Biology has 90 questions and 360 marks.
Are NEET Chemistry short notes enough, or should I read NCERT?
Short notes are for revision, and NCERT is the base. With the NEET Chemistry Notes too, read the NCERT unit first and use the notes to revise, because NEET questions can come directly from an NCERT line. Add previous year questions and mock tests.
Which are the most important formulas in NEET Chemistry Notes?
The formulas of molarity and mole fraction, the Bohr energy, Gibbs energy, the relation of Kp and Kc, pH and the Henderson-Hasselbalch equation, colligative properties, the Nernst equation, first-order kinetics, the Arrhenius equation and the spin-only magnetic moment. They are in the formula table of the NEET Chemistry Notes on this page.
How should I revise Organic Chemistry for NEET?
Learn the basic principles and the electronic effects first, then the reactions of each functional group as a one-page map, and revise the mechanisms and the name reactions that are in NCERT. Practise questions after every unit.
Where can I practise NEET Chemistry previous year questions?
Use the previous year paper table on this page, the NEET question paper page for all years from 2019 to 2026, and the chapter-wise NEET PYQ page on eSaral, to solve the Chemistry questions of each unit after you revise it.
What is the NEET Chemistry syllabus for 2027?
No separate NEET 2027 syllabus has been issued yet, so the NMC syllabus of 2026 is the one to follow. It has 20 Chemistry units, and the NEET Chemistry Notes on this page are arranged by them. The topic list of each unit is on eSaral’s NEET Chemistry syllabus page.
Team eSaral
eSaral Academic and Editorial Team
Team eSaral is the collective author profile for educational content created by eSaral’s teachers and academic contributors. The team draws on expertise from IIT graduates, doctors, experienced educators and subject specialists to develop resources for JEE, NEET and school students. Our articles aim to explain concepts clearly and help students study with confidence.
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