JEE Main Chemistry Formulas 2025

Dewesh Nandan Prasad

Updated On: April 17, 2025 07:01 PM Published On: March 29, 2025 06:09 PM | JEE Main

JEE Main 2025 Chemistry Formulas include all essential formulas from Physical, Organic, and Inorganic Chemistry. Mastering them will maximize your score in the JEE Main 2025 exam. Check all the formulas along with the topic-wise weightage here.
JEE Main Chemistry Formulas 2025

Mastering JEE Main 2025 Chemistry Formulas can be a game changer to secure good marks in the Chemistry Section of the JEE Main 2025 Exam. Formulas of JEE Main Chemistry are the language of chemistry, learning them well will enable you to develop accurate problem-solving. If you are planning to appear for JEE Main 2025 Session 2 must have a strong foundation of key topics and formulas of Physical, Organic and Inorganic Chemistry. It will help you to understand and apply core principles which will empower a significant advantage in the Chemistry section of the exam to score well. As the JEE Main 2025 , Session 2 is conducted from April 02, 2025, you must learn all the formulas of Chemistry.

Check Also: Best Way to Attempt JEE Main Exam: Section-Wise Strategy

JEE Main Chemistry, being a crucial part of the JEE Main syllabus, requires a strong grasp of concepts and formulas. Preparing for JEE Main 2025 Chemistry requires a strategic approach, where balancing conceptual understanding and formula retention is key. This article provides all essential formulas from Physical, Organic, and Inorganic Chemistry along with the topic-wise weightage to help you maximise your score efficiently in the JEE Main 2025 exam.

Check Also:

JEE Main Chemistry Formula 2025 Sheet

The formulas for the JEE Main Chemistry section have been divided into three sections: Physical, Organic and Inorganic. Candidates who are going to appear for the JEE Main 2025 exam can check the last-minute formula sheet for JEE Main chemistry in the article below.

Check Also: JEE Main Physics 2025 Predicted Topics and Questions

JEE Main Physical Chemistry Formula 2025 Sheet

The JEE Main Physical Chemistry comprises topics like atomic structure, chemical kinetics, and thermodynamics. Check the JEE Main 2025 physical chemistry in the table below:

Concept

Formula

Application

De Broglie Equation

λ = h/mv

Particle-wave duality

Arrhenius Equation

k = Ae^(-Ea/RT)

Reaction rate temperature dependence

Nernst Equation

E_cell = E°_cell - (0.0591/n)logQ

Cell potential calculations

Check Also: JEE Main Previous Year Question Papers with Solutions

JEE Main 2025 Organic Chemistry Formula Sheet

The JEE Main Organic Chemistry comprises topics like aromatic compounds,  general organic compounds, etc. Check the JEE Main 2025 organic chemistry formula  in the table below:

Concept

Formula/Rule

Application

Beer-Lambert Law

A = εcl

Concentration determination

Markovnikov's Rule

"H adds to C with more H's"

Alkene addition reactions

Hückel's Rule

4n+2 π electrons

Aromaticity prediction

Check Also: JEE Main Maths Formulas 2025

JEE Main 2025 Formulas of Inorganic Chemistry

The JEE Main Inorganic Chemistry comprises topics like coordination compound, p-block, d-block, etc. Check the JEE Main 2025 inorganic chemistry aromatic compounds and general organic chemistry in the table below:

Concept

Formula

Application

CFSE

CFSE = (-0.4x + 0.6y)Δ₀

Crystal field splitting energy

Magnetic Moment

μ = √[n(n+2)] BM

Transition metal complexes

EAN Rule

Z - Ox.state + 2(CN)

Coordination compound stability

Read Also: JEE Main Mathematics 2025 Predicted Topics and Questions

JEE Main Chemistry Formulas 2025 PDF

Download and print the JEE Main Chemistry Formula Sheet PDF 2025 for last-minute use. The download link for the JEE Main Chemistry Formula has been provided in the table below:

JEE Main Chemistry Formula Sheet PDF 2025

Click Here

Read Also: JEE Main Chemistry 2025 Predicted Topics and Questions

JEE Main Chemistry Topic Weightage 2025

The table below shows the approximate percentage of questions asked from each Chemistry topic in JEE Main:

Topic

Weightage (%)

Expected No. of Questions (Out of 30)

Physical Chemistry

35-40%

10-12

Organic Chemistry

30-35%

9-11

Inorganic Chemistry

25-30%

7-9

Check Also: JEE Main 2025 Dress Code & Exam Centre Guidelines

JEE Main Chemistry Weightage:  Breakdown of Important Topics

Check the weightage of the high, moderate and low weightage topics for JEE Main 2025 along with the important formula, so that you can understand the importance of formulas according to the chemistry chapters. The weightage-wise topics for JEE Main chemistry have been provided below:

JEE Mai Chemistry High-Weightage Topics:
  • Chemical Bonding & Molecular Structure: 12%
  • Thermodynamics & Thermochemistry: 10%
  • Chemical Kinetics: 8%
  • Coordination Compounds: 7%
  • Aldehydes, Ketones & Carboxylic Acids: 7%
JEE Main Chemistry Moderate Weightage Topics:
  • Atomic Structure: 6%
  • Electrochemistry: 6%
  • p-Block Elements: 6%
  • Biomolecules & Polymers: 5%
JEE Main Chemistry Low-Weightage Topics:
  • Environmental Chemistry: 2%
  • Surface Chemistry: 3%

Mastering these JEE Main Chemistry formulas for 2025 is essential for scoring well in the exam. Regular revision and practice of numerical problems based on these formulas will enhance problem-solving speed and accuracy. We have provided the complete details related to the JEE  Main Chemistry formula 2025 and hope that you has benefited from this article. Stay tuned to CollegeDekho for the latest updates related to the JEE Main exam and other entrance exams.

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FAQs

Is the JEE Main 2025 exam fully MCQ based?

The JEE Main exam incorporates various question types, comprising multiple-choice questions (MCQs), numerical value-based questions, as well as drawing-based questions. With MCQs, candidates must select the correct answer from the given options.

 

Is JEE Mains score enough for getting admission into IIT?

No. The JEE Mains exam alone is not enough for securing admission into an IIT. JEE Advanced is the crucial examination required for IIT admissions, and candidates are required to qualify in the JEE Main exam to be eligible for the JEE Advanced exam.

 

Is 90% considered a good score in the JEE Mains 2025 entrance exam?

Yes, 90 is considered to be a good percentile in the JEE Main 2025 entrance exam. Candidates can secure admission into NITs, IITs or IISc Bangalore if they score a rank between 1,00,000 and 1,50,000 with a 90 percentile in the JEE Main exam.

 

Which is the hardest topic in the JEE Mains 2025 exam?

Mathematics is often considered to be the most challenging subject in the JEE Main exam, but its difficulty level varies from person to person. Some students may find other subjects more challenging based upon their strengths and weaknesses.

 

Is NCERT enough for the JEE Mains 2025 preparation?

NCERT books are very important to prepare for the JEE Main 2025 exam. The JEE Main exam follows the CBSE syllabus for 11th and 12th classes, so NCERT books are considered to be the most reliable and necessary study materials. NCERT books explain basic fundamental concepts in a simple and clear way.

 

Is it easy to score 99 percentile in the JEE Mains 2025 exam?

To score a 99+ percentile in the JEE Main 2025 exam, candidates require more than just knowing the JEE Main syllabus, as it required consistent practice, strategic revision, time management, and the ability to solve complex problems under pressure. However, with the appropriate resources, one can achieve these requirements.

 

Can I leave any section for the JEE Main 2025 exam?

All sections namely Mathematics, Physics, and Chemistry are mandatory in the JEE Main exam, with questions covering the entire JEE Main syllabus. To be eligible for admission, candidates must achieve the minimum qualifying marks in each subject and the overall aggregate.

 

Which topics are removed from the JEE Main 2025 syllabus?

The topics namely Scalars and vectors, vectors, addition and subtraction of vectors, scalar and vector products, unit vectors, and the resolution of vectors have been removed from the JEE Main 2025 Physics syllabus.

 

 

Is 75% required for the JEE Main 2025 exam?

Candidates must keep in mind that there is no requirement of 75% marks in class 12 for appearing in the JEE Mains exam. The JEE Main eligibility criteria of minimum 75% marks in class 12 is required at the time of securing admission across NITs, IIITs and GFTIs. Candidates can apply and appear in the JEE Mains 2025 exam irrespective of their class 12 marks.

 

Is PYQ enough for the JEE Mains 2025 preparation?

Previous year question papers are an important source for the JEE Main preparations. However, relying solely upon PYQs is not enough to fully prepare for the JEE Mains exam. Candidates must also focus on covering the entire syllabus, developing strong conceptual understanding, practising time management, and attempting mock tests.

 

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