JEE Main 2021: Check important chapters and last minutes preparation tips for 25 July Exam

Joint Entrance Exam (JEE) Main 2026 ( JEE Main )

DeskCalelnderRegistration - 1 Feb '26 - 25 Feb '26

Saakshi Varsha
Saakshi Varsha Lama
Deputy Manager Content
Updated on Jul 23, 2021 17:24 IST
For the JEE Main 25 July 2021 paper, candidates need to be well prepared and have a good strategy to score high ranks. Check important chapters and last minutes preparation tips for JEE Main 25 July 2021 exam here.

JEE Main 2021 July 25 exam will be held as a computer-based test. Read to know JEE Main important topics and last-minute tips to prepare for the entrance examination.

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National Testing Agency is currently conducting JEE Main 2021 as a computer-based test at various centres. Since JEE Main is a national level examination, the competition level for BTech admissions into the participating institutes is very high. For the JEE Main 25 July exam, candidates need to be well prepared and have a good strategy to score high ranks. Few days before the exam, candidates should focus on important chapters and last minute preparation tips. By focusing on these tips, the candidates will be able to boost their preparation for the upcoming JEE Main exam.

JEE Main July 25 shift 1 question paper will be conducted from 9 AM to 12 Noon by NTA. Candidates who have to solve JEE Mains 2021 July 25 shift 2 question paper will have to attempt the exam from 3 PM to 6 PM. After the conclusion of the exam, JEE Mains 2021 25 July shift 1 answer key will be released by various coaching centres. JEE Main answer key for shift 2 will also be available online. 

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Important Chapters for JEE Main 2021 July 25

Candidates can check the important chapters which may have more weightage in the JEE Main 2021 July 25 shift 1 question paper. The same will be applicable for JEE Mains 2021 July 25 shift 2 question paper.

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Important Chapters for JEE Main 2021 Physics

Topics

Electromagnetic Induction & Alternating Current

Heat & Thermodynamics

Waves & Sound

Electromagnetic Waves

Error & Instrument Analysis

Oscillations

Rotation

Current Electricity & Capacitors

Semiconductors

Ray Optics

Bohr’s Atomic Model

Gravitation

Rotation

Properties of Matter

Important Chapters for JEE Main 2021 Chemistry

Topics

Alkyl Halides

Gaseous & Liquid State

Coordination Compound

Isomerism

Carboxylic Acids & Its Derivatives

Atomic Structure

Electrochemistry

General Organic Chemistry

d-Block Elements

Thermodynamics

Nuclear & Surface Chemistry

Aromatic Compounds

p-Block Elements

Aldehydes and Ketones

Chemical Bonding

Important Chapters for JEE Main 2021 Mathematics

Topics

Definite Integral & Area Under the Curve

Application of Derivatives

3 Dimensional Geometry

Conic Sections

Sequence & Series

Vectors

Sequence & Series

Complex Number

Binomial Theorem & M. I.

Circle

Probability Distribution (Binomial + Mean & Variance)

Determinant & Matrices

Limits, Continuity & Differentiability

Quadratic Equation

Functions

Straight Line

Last Minutes Preparation Tips for JEE Main 2021 25 July Exam

Candidates can check the last minute preparation tips for JEE Main 2021 exam that will be held on July 25.

Focus on Revision

Revision is very important before the examination. Candidates are advised to spend most of their time revising the topics and concepts that they have studied during their preparation period. This will help the candidates retain what they have studied and positively influence their performance in the JEE Main 2021 examination.

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Do Not Start New Topics

The golden rule of last-minute preparation tips is that new topics should never be studied just before the examination. By studying new topics, the candidates will have higher chances of getting confused about the concepts and formulas. Instead, the candidates should focus on strengthening their grasp on the topics that they have previously studied and revised.

Solve Mock Tests

Mock tests are a great way to test the progress of exam preparation. Since the mock tests will be similar to the question paper, the candidates will be able to familiarize themselves with how the exam will be conducted. By attempting mock tests, the candidates will also be able to identify their commonly made mistakes and work on it.

Work on Time Management

While preparing the JEE Main syllabus is important, the candidates will also have to work on their time management skills. Since the candidates have to answer many questions in a certain duration, there are chances that they might miss some due to time restraints. However, if the candidates have practiced solving past papers within the time limit then they will be able to perform well. During the exam, candidates are advised to allot a certain time for every section so that they can finish the exam within the given duration.

Be Healthy

It is very important for the candidates to be healthy both mentally and physically during the exam. This will help them to improve their performance in the examination. Candidates are advised to get enough sleep and not indulge in social media. Intake of healthy food is necessary to stay in the best shape.

Also Read:

JEE Main Preparation Tips 2021 by Toppers: Check Syllabus, Pattern & Best Books

JEE Main 2021 Preparation: Check Important Tips & Best Books to Study

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About the Author
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Saakshi Varsha Lama
Deputy Manager Content

Education: B.A. (Hons) in Psychology (Lady Shri Ram College for Women)

Expertise: Engineering Entrance Exam Expert

About

Saakshi Varsha Lama has been associated with Shiksha since 2021 and brings with her over nine

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Answered Yesterday

The JEE Main Answer Key is an official document released by the National Testing Agency (NTA) that lists the correct answers for all questions asked on the exam day.

A

Abhishek Chaudhary

Contributor-Level 7

Answered Yesterday

The JEE Main 2026 session 1 final answer key will be available soon before or with the JEE Mains result 2026.

V

Vipra Mehra

Contributor-Level 7

Answered Yesterday

The admission cutoff of JEE Main is the opening and closing ranks for each participating institute and is released by JoSAA (Joint Seat Allocation Authority). 

C

Chanchal Pandey

Contributor-Level 7

Answered Yesterday

The JEE Main 2026 cutoff is primarily determined by the difficulty level of the exam, the total number of candidates appearing, and available seats in NITs, IIITs, and GFTIs.

Y

Yatendra Singh

Contributor-Level 7

Answered Yesterday

JEE Main cutoff is minimum percentile score required to qualify for JEE Advanced. Cutoff is important as candidates clearing the cutoff can appear for JEE Advanced for IIT admission.

M

Manori Karan

Contributor-Level 7

Answered Yesterday

The National Testing Agency (NTA) will prepare and release the category JEE Main cutoff with the results of session 2.

V

Virajita Choudhury

Contributor-Level 7

Answered Yesterday

The JEE Main cutoff is the minimum percentile score required to qualify for the JEE Advanced exam. Its is released with the April session result.

A

Akansha Bhandari

Contributor-Level 7

Answered Yesterday

No. There is no qualifying percentile in JEE Main. However, the candidates who want to appear in JEE Advanced will have to get a minimum qualifying percentile in JEE Mains. This minimum qualifying percentile is announced with the JEE Main session 2 reult.

M

Manori Patra

Contributor-Level 7

Answered Yesterday

After JEE  Main result, candidates who want to improve their scores can appear for the second attempt. Rest candidates can start shortlisting colleges and prepare for the JoSAA counselling process.

A

Abhay Aggarwal

Contributor-Level 7

Answered Yesterday

Candidates can choose a maximum of 4 exam cities in the JEE Main application form from the choices available based on their present address.

M

Mamona Majumder

Contributor-Level 10