JEE Main Chemistry Formulas 2026 - Topic wise Important Formulas

JEE Main Chemistry Formulas 2026 - Topic wise Important Formulas

Team Careers360Updated on 16 Jun 2025, 04:32 AM IST

JEE Main Chemistry Formulas 2026 - The Joint entrance exam is one of the most competitive exam of engineering entrance exams. It is divided into three subsections (Physics, Chemistry, Maths). In which Chemistry is an important subject for JEE Main preparation. Hence, having a list of important formulas for JEE Main Chemistry 2025 is necessary. Every aspirant should have the short notes for JEE Mains that comprise the important formulas. These JEE important formulas for Chemistry help in solving the typical problems easily. Therefore, experts of Careers360 have issued a list of JEE Main 2026 Chemistry. Download the JEE Main Chemistry Formulas E-Book below:
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JEE Main Chemistry Formulas 2026 - Topic wise Important Formulas
JEE Main Chemistry Formulas 2026

JEE Main Chemistry Formulas 2026

There will be a total of 25 questions from Chemistry in JEE Main 2026, all of which have to be attempted. It is further segregated into Physical, Organic, and Inorganic sections. The maximum number of topics have been reduced from this section (chemistry) only. This makes Chemistry easier than before. However, the high-weightage topics for JEE Main remain the same.

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Below are important formulas for JEE Main 2026 Chemistry that are helpful for both sessions. Candidates should solve as many Chemistry questions as they can and implement these formulas to remember them quickly. To crack the JEE Main exam with good marks, paste these formulas near the study table and memorize them.

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Most Important JEE Main Chemistry Formulas 2026

  • Atomic Structure

  • Redox Reaction and Electrochemistry

  • Chemical Thermodynamics

  • Coordination Compounds

  • d - and f - BLOCK ELEMENTS

  • GOC isomerism

  • Solutions

  • Alkyl halides and aryl halides

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Most Important Formulas for JEE Chemistry

$$
\begin{aligned}
& \mathrm{c}=\frac{\text { distance }}{\text { time }}=\frac{\text { Wavelength }}{\text { Time Period }}=\frac{\lambda}{\mathrm{T}} \\
& \because \nu=\frac{1}{\mathrm{~T}} \\
& \therefore \mathrm{c}=\nu \times \lambda
\end{aligned}
$$

(i) Work done in reversible isothermal process

$$
\begin{aligned}
& \mathrm{W}=-2.303 \mathrm{nRT} \log _{10} \frac{\mathrm{~V}_2}{\mathrm{~V}_1} \\
& \mathrm{~W}=-2.303 \mathrm{nRT} \log _{10} \frac{\mathrm{P}_1}{\mathrm{P}_2}
\end{aligned}
$$

(ii) Work done in irreversible isothermal process

Work $=-\mathrm{P}_{\text {ext. }}\left(\mathrm{V}_2-\mathrm{V}_1\right)$
That is, Work $=-\mathrm{P} \times \Delta \mathrm{V}$
At $\mathrm{T}=298 \mathrm{~K}$, Nernst equation is given as follows:

$$
\mathrm{E}_{\text {cell }}=\mathrm{E}_{\text {cell }}^{\circ}-\frac{0.059}{\mathrm{n}} \log _{10} \mathrm{Q}
$$


Mass by Volume $\%$ of a component $=\frac{\text { Mass of the component }}{\text { Total volume of solution }} \times 100$

Frequently Asked Questions (FAQs)

Q: What is the JEE Mains ?
A:

JEE Main is an exam conducted for those aspirants who want to take admission in NIITs, IITs and other engineering colleges, and it is also an eligibility test for JEE advance.

Q: Which part of chemistry has many formulas ?
A:

Chemistry has three subparts (Physical, inorganic and organic). Physical chemistry has many numericals based on different formulas.

Q: Is the class 12 syllabus important for the JEE Main Exam ?
A:

Yes, Class 12 syllabus carries more than 50% of weightage, so it is important for JEE Main Exam.

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Questions related to JEE Main

On Question asked by student community

Have a question related to JEE Main ?

In Malda district, West Bengal, the JEE Main 2025 exam centre code is WB20. Candidates from the district can choose Malda as their preferred exam centre during registration. The final allotment of centres depends on availability and preferences submitted by students. The exact number of exam halls may vary each year based on the number of applicants. Students should confirm their allotted centre through the official JEE Main admit card.



Yes, you should apply EWS in JEE Main form if you are eligible. For 2026 attempt, it’s better to make your EWS certificate in advance and keep it ready, because at the time of counseling they ask for a valid certificate.

You can find chapter-wise JEE Main previous year questions (PYQs) in Hindi through various resources. MTG publishes a popular book, “24 Years JEE Main Chapterwise Solutions,” covering Physics, Chemistry, and Mathematics with detailed solutions. Websites like SelfStudys, MathonGo, Mockers, and eSaral provide PDF downloads of chapter-wise PYQs with answers. Additionally, mobile apps on the Google Play Store offer Hindi versions of past JEE Main papers with solutions. These resources help students practice topic-wise questions efficiently and prepare thoroughly for exams.

The approximate annual cost for 11th/12th PCM and JEE coaching is around 1.5 to 3.5 lakhs for institutes, excluding hostel and mess fees. The total fees including hostel as well as mess fees can rise upto 4.5 to 6.5 lakhs and above, depending on location and institute quality.

Hi dear candidate,

You can anytime visit our official website to find the previous 10 years JEE Mains question papers with solutions. Kindly refer to the link attached below to download them in PDF format:

JEE Main Last 10 Years Question Papers with Solutions (2025 to 2015)

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