When it comes to exams like JEE Main, students are always looking for strategies to improve their scores and gain admission to top engineering schools. One of the most common queries students have during test preparation is concerning crucial topics and chapters for JEE Main 2023. To help students, we’ve compiled a list of ‘JEE Main 2023 Important Chapters & Topics’ for Physics, Chemistry, and Mathematics. Students are encouraged to focus on key chapters and complete the JEE Main 2023 curriculum.

Important chapters for JEE Main 2023 preparation provided here are recommended by subject and coaching experts. Students preparing for the exam should give special emphasis to these chapters to score good marks. Candidates are also provided herewith subject-wise weightage of JEE Main chapters and topics and expert tips and tricks for subject-wise preparation.

Chemistry is the most scoring subject with the average score being more than 35 marks; Mathematics on the other hand is the most difficult to score off averaging a little over 25.

*Note: There is no standard weighting for all topics in Physics, Chemistry, and Mathematics for JEE Main . Since the weighting for each topic varies, it is essential that candidates prepare each topic thoroughly regardless of their weightage.*

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Table of Contents

**Important Topics for JEE Main 2023 in Physics**

Firstly, let’s talk about the important topics for JEE Main in Physics frequently asked in JEE Main. These topics have been carrying a consistent weightage as per the JEE Main previous year papers.

**JEE Mains Chapter wise weightage for Physics**

S.No | Unit | No. of Questions | Total marks | Weightage |

1. | Modern Physics | 5 | 20 | 16.67% |

2. | Heat and Thermodynamics | 3 | 12 | 10% |

3. | Optics | 3 | 12 | 10% |

4. | Current Electricity | 3 | 12 | 10% |

5. | Electrostatics | 3 | 12 | 10% |

6. | Magnetics | 2 | 8 | 6.67% |

7. | Unit, Dimension and Vector | 1 | 4 | 3.33% |

8. | Kinematics | 1 | 4 | 3.33% |

9. | Laws of motion | 1 | 4 | 3.33% |

10. | Work, Power and Energy | 1 | 4 | 3.33% |

11. | Centre Of Mass, Impulse and Momentum | 1 | 4 | 3.33% |

12. | Rotation | 1 | 4 | 3.33% |

13. | Gravitation | 1 | 4 | 3.33% |

14. | Simple Harmonic Motion | 1 | 4 | 3.33% |

15. | Solids and Fluids | 1 | 4 | 3.33% |

16. | Waves | 1 | 4 | 3.33% |

17. | Electromagnetic Induction; AC | 1 | 4 | 3.33% |

We have divided the important topics into easy scoring topics and difficult topics.

- Semiconductor – 4 marks
- Communication system – 4 marks
- Current electricity- 4/8 marks
- EMI + Magnetism- 4/8 marks
- Nuclear Phy- 4 marks
- Optics – 8 marks
- Error & Measurement – 4 marks
- Electromagnetic Waves- 4 marks
- Waves – 4 marks
- Electrostats and Gravitation – 8 marks

**Easy
Topics in JEE Main Physics**

**Electrostatics**is a very lengthy but is a easy topic. Mostly three to four questions are asked from this topic every year.**Current Electricity**is a small topic but is very scoring. Questions from the topic like colour code of resisters, Ohm’s Law, etc. are frequently asked in the JEE Main exam.**Electro-magnetic Induction**and**Alternating Current**is also easy topic and is an important topic for JEE Main. One to two questions are asked from these two topics each year.**Semiconductor & Electronic Devices, Communication, Units & Dimensions, Measurement of error (Absolute and Relative), Instruments.**These are very small and scoring topics. One question is usually asked from each of these topics in JEE Main. So, you should not skip these as they can easily score 16-20 marks.

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**Difficult
Topics as per JEE Main Physics Syllabus**

The topics given below are also important topics of JEE Main 2023 in Physics, but require dedicated focus and more time.

**Mechanics**is the most important topic for JEE Main. Most of the questions asked in JEE Main demand conceptual understanding of the chapters of Mechanics. Some of the important topics in mechanics for JEE Main are:- Newton’s Law of Motion
- Bernoulli’s theorem
- Elasticity
- Equation of Continuity
- Kinematics
- Fluid Mechanics
- Work, Energy and Power
- Rigid Body Dynamics
- Gravitation
- Law of conservation of momentum (linear/angular)

**Magnetism**is a very important topic for JEE Main. Usually, a good number of questions are asked from this topic in JEE Main.**Optics**is also a very important topic for JEE Main. You should be thorough in this topic.**Modern Physics**is the most important topic for JEE Main in Physics. This chapter typically has a questions of 12-16 marks in JEE Main. Most frequently asked topics are as below:- X-ray (Continuous wavelength, Characteristic Wavelength)
- Atomic Structure (Spectrum/Radius)
- Radioactivity
- Dual Nature of Matter
- Photoelectric Effect
- Nuclear fission

- You must study
**Oscillation and Waves**topic in detail. Questions related to topics like SHM, sound waves, string, Doppler effect, Wave Optics are surely asked in JEE Main each year. - 1-2 questions are asked
every year from
**Thermodynamics**, so you should be thorough with it as well.

**Chemistry EASY AND IMPORTANT CHAPTERS ( JEE MAINS 2023 )**

Chemistry is the most scoring subject with the average score being more than 35 marks; Mathematics on the other hand is the most difficult to score off averaging a little over 25.

**JEE Mains chapter wise weightage for Chemistry**

S.No | Unit | No. of Questions | Total marks | Weightage |

1. | Transition Elements and Coordination Chemistry | 3 | 12 | 10% |

2. | Periodic table and Representative Elements | 3 | 12 | 10% |

3. | Thermodynamics And Gaseous State | 2 | 8 | 6.67% |

4. | Atomic Structure | 2 | 8 | 6.67% |

5. | Chemical Bonding | 2 | 8 | 6.67% |

6. | Chemical And Ionic Equilibrium | 2 | 8 | 6.67% |

7. | Solid-State And Surface Chemistry | 2 | 8 | 6.67% |

8. | Nuclear Chemistry And Environment | 2 | 8 | 6.67% |

9. | Mole Concept | 1 | 4 | 3.33% |

10. | Redox Reaction | 1 | 4 | 3.33% |

11. | Electrochemistry | 1 | 4 | 3.33% |

12. | Chemical Kinetics | 1 | 4 | 3.33% |

13. | Solution and Colligative Properties | 1 | 4 | 3.33% |

14. | General Organic Chemistry | 1 | 4 | 3.33% |

15. | Stereochemistry | 1 | 4 | 3.33% |

16. | Hydrocarbon | 1 | 4 | 3.33% |

17. | Alkyl Halides | 1 | 4 | 3.33% |

18. | Carboxylic Acid and their Derivatives | 1 | 4 | 3.33% |

19. | Carbohydrates, amino acid, and Polymers | 1 | 4 | 3.33% |

20. | Aromatic Compounds | 1 | 4 | 3.33% |

- Mole concept- 4 marks
- Solid state – 4 marks
- Solution – 4 marks
- Biomolecules- 4 marks
- Polymer- 4 marks
- Atomic structure- 4 marks
- Chemical Bonding- 4/8 marks
- Chemical kinetics- 4 marks
- Thermodynamics and Thermochemistry- 8 marks
- Surface chemistry + Metallurgy + real Gas + Chem in Every day – 12 marks

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*( Click )***Important
topics for JEE Main Organic Chemistry**

The pattern of questions asked in Organic Chemistry in JEE Main is not fixed. Questions can be asked at random and therefore, all are important topics for JEE Main 2023. You should prepare the basic and general topics of organic chemistry in detail. These topics include nomenclature, types of reactions, basicity, acidity, etc.

You
should be thorough with the named reactions and their mechanism. Questions
based on named reactions and mechanism are commonly asked in JEE Main . You
should also prepare steps of common chemical reactions. On average, 2-3
questions from the topic – **organic synthesis** are asked in the exam.

**Important
topics for JEE Main Inorganic Chemistry**

All the topics in Inorganic Chemistry are considered important for JEE Main 2023. All the chapters carry equal weightage in JEE Main. Your basics and the fundamentals should be clear in each and every topic. Inorganic chemistry can help boost your score if you prepare Method of Preparation, Chemical Reactions, uses, etc. of the compounds.

The **Elements of the periodic table and Chemical Bonding** are the most important topics for JEE Main 2023. These two topics should be on your tips. They are important for building a solid foundation for Inorganic chemistry. Questions asked from Chemical bonding are based on the following topics:

- Fajan’s Rule & it’s application
- Shape and Hybridisation
- Molecular Orbital Theory (where the most important topic is Electronic Configuration)
- Dipole Moment

Another
very important topic for JEE Main in Inorganic Chemistry is **Transition
elements and coordination chemistry**. About three questions are asked from this
chapter. Questions are based on topics like Isomerism (Structural, Geometrical,
Linkage, Optical Isomerism), Lanthanoid Contraction, Nomenclature and Crystal
Field Theory.

**Hydrogen** and **S & P block elements** are also among the most important topics for JEE Main. You should be thorough in topics such as structures of various acids like P, S, Cl, N, Nitrogen Oxides, Dimers of Boron and Aluminium, oxides and their acidic-basic structure.

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**Important
topics for JEE Main Physical Chemistry**

The most
important topic for JEE Main in Physical Chemistry is **Mole concept**. Many
reactions like Redox Reaction are based on Mole concept. So, this topic should
be on your tips as this is the basic connect.

Your
formulae and basic concepts should be clear in **Atomic Structure**.
Questions are frequently asked from this chapter in JEE Main. Important topics
in this chapter are Quantum Numbers, the Wavelength of Electronic Transition
and Ionisation Energy.

**Gaseous State and Solid state** are also important topics for JEE Main 2023. Your fundamentals should be clear on these topics. Frequently asked questions are from topics like van der Waals equation, Kinetic Theory of Gases and Types of Molecular Velocity.

The other topics that carry equal weightage in JEE Main are below:

- Solutions
- Electrochemistry & redox Reactions
- Chemical Bonding and Molecular Structure
- Chemical Thermodynamics
- Equilibrium
- Surface Chemistry
- Chemical Kinetics

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**Important Topics for JEE Main 2023 in Mathematics**

In the Mathematics section of JEE Main, there is an even distribution of marks for all the chapters. There are 15 chapters and all are equally important chapters for JEE Main. So, you can prioritise focusing on particular chapters which are easy and the chapters in which you have a good grip.

**JEE Mains Chapter wise weightage for Mathematics**

S.No | Unit | No. of Questions | Total marks | Weightage |

1. | Coordinate Geometry | 5 | 20 | 16.67% |

2. | Limits, continuity, and Differentiability | 3 | 12 | 10% |

3. | Integral Calculus | 3 | 12 | 10% |

4. | Complex numbers and Quadratic Equation | 2 | 8 | 6.67% |

5. | Matrices and determinants | 2 | 8 | 6.67% |

6. | Statistics and Probability | 2 | 8 | 6.67% |

7. | Three-dimensional geometry | 2 | 8 | 6.67% |

8. | Vector Algebra | 2 | 8 | 6.67% |

9. | Sets, relations, and function | 1 | 4 | 3.33% |

10. | Permutation and Combination | 1 | 4 | 3.33% |

11. | Binomial theorem and its Application | 1 | 4 | 3.33% |

12. | Sequences and Series | 1 | 4 | 3.33% |

13. | Trigonometry | 1 | 4 | 3.33% |

14. | Mathematical Reasoning | 1 | 4 | 3.33% |

15. | Differential Equation | 1 | 4 | 3.33% |

16. | Statistics and Dynamics | 1 | 4 | 3.33% |

17. | Differential Calculus | 1 | 4 | 3.33% |

Below is a list of scoring chapters and important chapters for JEE Main in Mathematics:

- Sequence & Series
- Determinants and Matrices
- Sets and relations
- Mathematical Reasoning
- Statistics & Probability
- Vector & 3D
- Straight line
- Circle
- Definite Integral
- Indefinite Integral
- Application of Derivatives
- Differential equation
- Application of Integrals
- Trigonometric Ratios

**MATHS EASY AND IMPORTANT CHAPTERS ( JEE MAINS 2023 )**

- Statistics- 4 marks
- Height and Distance- 4 marks
- Mathematical Reasonong- 4marks
- Matrices and Determinant- 8 marks
- Sets,Relation and function – 8 marks
- Vector and 3D– 8 marks
- Quadratic equation– 4 Marks
- Area – 4 marks
- Limit , continuity and derivability–8 marks
- Conic section – 12 marks

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