JEE Mains Chemistry Formulas 2026
Chemistry in JEE Main 2026 is divided into three sections i.e., Physical, Inorganic, and Organic Chemistry. All three categories consist of chapters with significant weight, and thus, being able to reliably and quickly use the formulas from these chapters is instrumental to problem-solving in Chemistry. This blog explains the importance of having access to many formulas to earn higher scores in Chemistry. Key Sections:
- Physical Chemistry – Thermodynamics, Electrochemistry, Chemical Kinetics, and Solutions.
- Inorganic Chemistry – Chemical Bonding, Metallurgy, Coordination Compounds, and d & f Block
- Organic Chemistry – Hydrocarbons, Functional Groups - Alcohol, Carboxylic Acid, Ketones, Amines.
Formulas allow students to save time, improve accuracy, and strengthen conceptual understanding
Before exams, a complete formula sheet PDF can help with quick review. This formula sheet has all the essential formulas for Physical, Inorganic, and Organic Chemistry chapters. PDF file of the Cracku Chemistry Formulas for JEE Mains (All Chemistry formulas in chapter-wise format). This will help you memorise the formulas quickly and do the revision at the last minute. Download and practice with this PDF regularly so that you will have access to all the formulas.
JEE Mains Chemistry Formulas PDF
Chemistry is an important topic for JEE Mains 2026 because of the total of 25 questions related to this subject that are included in the test, as it is a high-scoring subject. In order to solve numeric and theory-based questions quickly and accurately, a student must be familiar with the key formulas of each type of Chemistry (Physical Chemistry, Inorganic Chemistry, and Organic Chemistry).
To assist students preparing for JEE Mains 2026, this article provides a detailed list of chapter-wise formulas, previous year important formulas, quick revision techniques, and access to a reliable website to download a full set of JEE Mains 2026 Chemistry formulas PDF.
Chapter-Wise JEE Mains Chemistry Formulas
Chemistry preparation becomes easier when formulas are organised chapter-wise. The table below lists Important topics and commonly used Formulas.
This area provides formulas for Physical, Inorganic and Organic chemistry chapter-wise for your daily revision and practice.
Physical Chemistry
Physical Chemistry involves numerical-based questions, making formulas extremely important. Here are the key formulas:
Topic | Key Formulas |
Mole Concept | Molarity (M) = Moles of Solute / Volume (L) , χ = Moles of component / Total Moles , n = Given mass (m) / Molar mass (M) |
Gas Laws | PV = nRT, Dalton’s Law: Ptotal = P1 + P2 + … (Sum of partial pressures) |
Thermodynamics | ΔU = q + w, ΔH = ΔU + ΔnRT, ΔG = ΔH − TΔS |
Chemical Equilibrium | Kc = [products]ˣ / [reactants]ʸ, Q = [products]ˣ / [reactants]ʸ |
Electrochemistry | E = E° − (0.0591/n) log Q, m = (Q × M) / nF |
Kinetics | Rate = k[A]ⁿ, t₁/₂ = 0.693 / k |
Solutions | π = CRT, P = X × P°, ΔTb = Kb × m |
Inorganic Chemistry
Inorganic Chemistry focuses on conceptual clarity and memorisation of formulas. Key formulas include:
Topic | Key Formulas / Concepts |
d- block & p-block | Oxidation states, Acidic/Basic nature |
Chemical Bonding | Formal Charge (FC) = V − N − B/2, BO = (Nb − Na)/2 |
Coordination Compounds | EAN = Z − O + 2L, CFSE, μ = √[n(n+2)] |
Periodic Table | Ionization Energy (IE), Electron Affinity (EA), Atomic / Molecular Radius trends |
Organic Chemistry
Organic Chemistry formulas are mostly application-based for reaction calculations and structural analysis. Some of the important formulas involved include:
Topic | Key Formulas / Concepts |
Hydrocarbons | Alkanes: CnH₂n+₂, Alkenes: CnH₂n, Alkynes: CnH₂n−₂ |
Degree of Unsaturation | DU = (2C + 2 − H + N − X)/2 |
Functional Groups | Alcohols, Aldehydes, Ketones, Carboxylic Acids, Amines |
Reaction Rules | Markovnikov rule, Anti-Markovnikov |
Stereochemistry | Optical Activity, R/S notation, cis/trans isomerism |
Importance of Chemistry Formulas for JEE Main
Formulas are not just for memorization—they are tools for problem-solving.
Understanding the right formulas helps students:
- Solve numerical questions quickly
- Reduce calculation errors in Physical and Organic Chemistry
- Memorize concepts more efficiently
- Gain confidence in solving previous year questions
A strong grasp of formulas can give students a competitive edge in the exam.
Important Chemistry Formulas from Previous Years
There have been some formulas that have shown up repeatedly in JEE Mains exam. If you want to get maximum marks in the Chemistry section, be familiar with them. Here are several examples:
- Ideal Gas Law: PV = nRT
- Gibbs Free Energy: ΔG = −RT ln K
- Nernst Equation for electrochemical cells
- Formal Charge & Bond Order in Inorganic Chemistry
- Degree of Unsaturation in Organic Chemistry
- Magnetic Moment: μ = √[n(n+2)]
Practising these formulas with previous year questions enhances speed and accuracy.
Tips to Revise Chemistry Formulas Quickly
Revision is critical for memorisation. These strategies help retain formulas effectively:
- Flashcards - Write formulas on one side, examples on the other.
- Daily Revision - Spend 20-30 minutes revising formulas daily.
- Solve Numerical Problems - Reinforces application of formulas.
- Group Study & Quizzes - Discuss tricky formulas for better understanding.
- Formula Charts - Use charts for visual recall and faster learning.
Final Tips for Exam Preparation
- Understand the concept behind each formula, don’t just memorize.
- Use formulas to answer past year questions to become familiar and be more confident.
- Keep a book personally written by you of any formulas of importance.
- Concentrate on chapters that carry a lot of weight, such as Chemical Bonding, Electrochemistry, and Thermodynamics.
Understanding the above formulas gives you an advantage as a competitive applicant to JEE Mains Chemistry section, as well as providing you with a sense of confidence in how quickly you can answer questions accurately.
JEE Mains Chemistry Formulas 2026: Conclusion
Chemistry plays a crucial role in JEE preparation, and having a strong command of formulas across Physical, Organic, and Inorganic sections can significantly improve performance. Understanding how and when to apply formulas helps students solve both numerical and theory-based questions efficiently. Regular practice and consistent revision are key to mastering this subject.
To achieve better results, students should focus on important chapters, revise formulas daily, and apply them in problem-solving. Building clarity in concepts along with formula-based practice boosts confidence and accuracy. With the right strategy and disciplined revision, Chemistry can become one of the most scoring sections in the exam.
