Across the last five years of JEE Main, the most repeated topics are Modern Physics (photoelectric effect, Bohr transitions), Current Electricity, and Ray Optics in Physics. Coordination Compounds (CFT, isomerism), Chemical Bonding (MOT, VSEPR), and General Organic Chemistry in Chemistry are usually repeated. In Maths, 3D Geometry & Vectors (shortest distance), Matrices & Determinants, and Definite Integration are widely asked. Check the complete analysis of high weightage chapters for JEE Mains below.
High Weightage Chapters for JEE Mains 2027
High Weightage Chapters for JEE Mains 2027: The National Testing Agency organises the JEE Mains exam yearly in two sessions with multiple shifts. Nearly every year, certain topics are consistently featured in each shift. These chapters tend to have high weightage, meaning many questions are derived from these chapters. On this page, we have listed the high weightage chapters for JEE Mains 2027 based on analysis from the past five years. Additionally, we have identified the specific topics within each chapter that frequently have questions, which will help candidates preparing for JEE Mains 2027 focus on the most essential areas to study.
However, candidates who want to clear the exam with 99+ percentile should complete the entire syllabus rather than just focusing on the high weigtage JEE Main chapters. The high weightage chapters should be referred to for prioritisation on what to study first with more focus.
- High Weightage Chapters for JEE Mains 2027
- Important Subtopics for JEE Mains High Weightage Chapters
- How Do High Weightage Chapters for JEE Mains Help in Preparation?
High Weightage Chapters for JEE Mains 2027
Here is the year-wise question breakdown from 2022 to 2026 across all shifts, along with the average questions per shift (Q/Shift).
Key observation:
- The data from 2024 to 2026 shows the updated JEE Main syllabus. By removing topics like Solid State, Metallurgy, Surface Chemistry, and Mathematical Reasoning, the overall focus on the remaining core chapters increased.
- Based on multi-year PYQ (JEE Mains Previous Year Question) trend analyses across all shifts, roughly 30% of the syllabus contributes to nearly 60 - 65% of the total marks.
High Weightage Physics Chapters for JEE Main 2027
| Chapter / Unit |
2022 |
2023 |
2024 |
2025 |
2026 |
Avg Q / Shift |
|---|---|---|---|---|---|---|
| Modern Physics (Dual Nature, Atoms, Nuclei) |
54 |
67 |
62 |
58 |
56 |
3 - 4 |
| Current Electricity |
45 |
50 |
48 |
42 |
44 |
2 - 3 |
| Electrostatics & Capacitance |
40 |
44 |
41 |
38 |
39 |
2 - 3 |
| Ray & Wave Optics |
39 |
42 |
40 |
36 |
37 |
2 - 3 |
| Thermodynamics & KTG |
38 |
42 |
39 |
35 |
36 |
2 - 3 |
| Moving Charges & Magnetism |
32 |
35 |
36 |
32 |
34 |
1 - 2 |
| Gravitation |
24 |
39 |
30 |
28 |
27 |
1 - 2 |
| Semiconductor Devices |
29 |
25 |
28 |
26 |
25 |
1 - 2 |
-
Top Scoring Topic: Modern Physics (Dual Nature, Atoms, Nuclei) consistently holds the highest weightage, with questions ranging between 54 and 67 annually, averaging 3 to 4 questions per shift.
-
Core Electromagnetism & Circuits: Current Electricity and Electrostatics & Capacitance are reliable high-weightage areas, each averaging 2 to 3 questions per shift.
-
Consistent Mid-Tier Chapters: Ray & Wave Optics and Thermodynamics & KTG show steady trends year over year, contributing a stable 2 to 3 questions per shift.
-
Other Topics with Steady Weightage: Moving Charges & Magnetism, Gravitation, and Semiconductor Devices yield 1 to 2 questions per shift, with Gravitation seeing a noticeable peak in 2023.
JEE Main 2027 High Weightage Maths Chapters
| Chapter / Unit |
2022 |
2023 |
2024 |
2025 |
2026 |
Avg Q / Shift |
|---|---|---|---|---|---|---|
| Vectors & 3D Geometry |
75 |
114 |
98 |
92 |
94 |
3 - 5 |
| Definite Integration & Area Under Curves |
57 |
60 |
54 |
50 |
52 |
3 - 4 |
| Permutations, Combinations & Probability |
45 |
68 |
58 |
54 |
56 |
2 - 3 |
| Matrices & Determinants |
46 |
51 |
48 |
44 |
45 |
2 - 3 |
| Sequences & Series |
37 |
45 |
40 |
38 |
39 |
2 - 3 |
| Binomial Theorem |
28 |
49 |
45 |
42 |
43 |
1 - 2 |
| Functions, Limits & Continuity |
38 |
48 |
44 |
40 |
42 |
1 - 2 |
| Differential Equations |
38 |
24 |
32 |
30 |
31 |
1 - 2 |
- The Leading Chapter: Vectors & 3D Geometry is the single highest-scoring math chapter, peaking at 114 questions and consistently delivering 3 to 5 questions per shift.
-
Calculus & Algebra: Definite Integration & Area Under Curves, Matrices & Determinants, and Sequences & Series maintain strong, dependable numbers, averaging 2 to 4 questions per shift.
-
Probability Weightage: Permutations, Combinations & Probability show higher year-to-year variation; peaking at 68 questions in 2023, and averaging 2 to 3 questions per shift.
-
Foundational Scoring: Binomial Theorem, Functions, Limits & Continuity, and Differential Equations steadily contribute 1 to 2 questions per shift.
High Weightage Chemistry Chapters for JEE Mains 2027
| Chapter / Unit |
2022 |
2023 |
2024 |
2025 |
2026 |
Avg Q / Shift |
|---|---|---|---|---|---|---|
| General Organic Chemistry (GOC) |
43 |
41 |
48 |
46 |
47 |
2 - 3 |
| Coordination Compounds |
30 |
53 |
47 |
45 |
46 |
2 - 3 |
| Carbonyl Compounds & Carboxylic Acids |
34 |
35 |
42 |
40 |
41 |
1 - 2 |
| Chemical Bonding & Molecular Structure |
30 |
35 |
38 |
36 |
38 |
1 - 2 |
| d- and f-Block Elements |
28 |
26 |
34 |
32 |
33 |
1 - 2 |
| Electrochemistry |
23 |
24 |
29 |
28 |
29 |
1 - 2 |
| Chemical Kinetics |
22 |
25 |
28 |
27 |
26 |
1 - 2 |
| Chemical Thermodynamics |
23 |
30 |
28 |
26 |
27 |
1 - 2 |
-
Organic Dominance: General Organic Chemistry (GOC) is the most consistent top performer in chemistry, maintaining steady numbers (41 - 48 questions) and 2 to 3 questions per shift.
-
Inorganic Chemistry: Coordination Compounds experienced a sharp rise in 2023 (53 questions) and continues to average 2 to 3 questions per shift alongside Chemical Bonding & Molecular Structure.
-
Physical Chemistry Consistency: Electrochemistry, Chemical Kinetics, and Chemical Thermodynamics show very stable trends, each contributing a reliable 1 to 2 questions per shift.
-
Aldehydes/Ketones & Blocks: Carbonyl Compounds & Carboxylic Acids and d- and f-Block Elements remain strong secondary priorities, consistently yielding 1 to 2 questions per shift.
Commonly asked questions
Do your research to choose the best book for JEE Main preparation. You can talk to your teachers before you decide. Some books recommended for your preparation are given below:
| Subjects | Books |
|---|---|
| Physics |
|
| Chemistry |
|
| Mathematics |
|
JEE Main syllabus is based on class 11 and 12 Physics, Chemistry and Maths topics. If you have focused while studying, then it will be easy to prepare for the exam otherwise, you may find it difficult. NCERT textbook is the best for Chemistry and Physics. You can also refer to other books for exam preparation. There are many preparation books suggested by the toppers of Joint Entrance Examination Main.
Time required to cover JEE Main syllabus changes from one student to another student. In general, to complete the entire JEE Main syllabus, students would require around 1 year. The ideal time to start preparing for JEE Main is class 11 as the syllabus for JEE and class 11-12 is similar. Students who are studying in class 11 can point out the topics that are common in both and pay special emphasis to those topics.
Some of the best books for JEE Main preparation are as follows:
For Physics, candidates can refer to: NCERT Class 11 and 12 Textbooks, Concepts of Physics (Vol. 1 and 2) by HC Verma, Fundamentals of Physics by Halliday, Resnick & Walker and Problems in General Physics by I.E Irodov.
For Maths, candidates should refer to the NCERT Class 11 and 12 Textbooks and Objective Mathematics by RD Sharma.
For Chemistry, candidates can check books like NCERT Textbooks for classes 11 and 12, Modern Approach to Chemical Calculations by RC Mukherjee, and Organic Chemistry by OP Tandon.
Important Subtopics for JEE Mains High Weightage Chapters
There are specific topics that dominate the JEE Main question papers from the high-weightage chapters. Check the list of important topics for JEE Mains 2027 below:
Most Important Topics from High Weightage Chapters for JEE Mains Physics
| Chapter | Topics |
|---|---|
| Modern Physics (Dual Nature, Atoms, Nuclei) |
Photoelectric Effect, Bohr Model, de Broglie Wavelength, Nuclear Physics |
| Current Electricity |
Circuit Analysis: Kirchhoff's Voltage and Current Laws, symmetry circuits (cube resistance, infinite ladder networks) Drift Velocity & Mobility Instruments: Meter bridge balance condition, end corrections, and galvanometer conversion to ammeter/voltmeter Temperature Dependence |
| Electrostatics & Capacitance | Gauss's Law: Flux through symmetric surfaces, electric fields inside non-conducting, non-uniform charge-density spheres. Potential & Field Relations: Electrostatic potential energy of charge systems. Dielectric Insertion: Capacitance, charge, and energy changes when a dielectric slab is inserted with the battery connected vs. disconnected. |
| Ray & Wave Optics | Refraction at Spherical Surfaces & Lenses: Lens-maker's formula, combination of thin lenses in contact/separated by distance, silvered lens problems. Prisms: Minimum deviation condition, Cauchy's dispersion relations. Wave Optics (YDSE): Fringe width, shift in fringe pattern due to insertion of a thin transparent sheet, ratio of maximum to minimum intensity. |
| Semiconductor Devices | Zener Diode: Voltage regulation calculations (determining current through load resistor and Zener breakdown limits). p-n Junction: Identification of forward vs. reverse bias, ideal vs. barrier-potential diode circuits. Logic Gates: De Morgan’s laws, universal gate reductions (NAND/NOR), truth-table matching. |
Most Important Topics from High Weightage JEE Main Chapters for Maths
| Chapter | Topics |
|---|---|
| Vectors & 3D Geometry | Shortest Distance: Distance between skew lines and parallel lines. Line Equations: Foot of the perpendicular, image of a point with respect to a line, point of intersection of two lines. Vector Products: Vector Triple Product, projection of a vector onto another, coplanarity conditions using the scalar triple product. |
| Matrices & Determinants | System of Linear Equations: Non-trivial solutions, consistency tests for unique solution, infinite solutions, or no solution via determinant conditions Adjoint Properties: Determinant relations Characteristic Equation / Cayley-Hamilton: Finding matrix powers and inverses using polynomial substitutions. |
| Definite Integration & Area Under Curves | King’s Property: appears in nearly every shift. Leibniz Rule: Differentiating under an integral sign, commonly merged into Limits or Differential Equations. Area Between Curves: Region bounded by parabolas, lines, and absolute value functions |
| Binomial Theorem | Sum of Series / Telescoping Sums: Fractional decomposition, trigonometric telescoping cancellation. AP/GP Properties: Arithmetic-Geometric Progressions (AGP), relation between AM and GM for finding minimum/maximum values. |
| Differential Equations | Linear Differential Equations (LDE): First-order linear forms, Integrating Factor Homogeneous & Reducible Forms: Standard substitutions |
Most Important Chemistry Topics from High Weightage Chapters for JEE Main
| Chapter | Topics |
|---|---|
| General Organic Chemistry (GOC) | Acidic & Basic Strength: Comparison of substituted phenols, benzoic acids, and aliphatic/aromatic amines (in gaseous vs. aqueous phase). Carbocation/Carbanion Stability: Ranking stabilities via resonance, hyperconjugation, and inductive effects. Reaction Intermediates: Ring expansion, hydride/methyl shifts during carbocation rearrangement. |
| Coordination Compounds | Crystal Field Theory (CFT): Octahedral and tetrahedral splitting, and electron distribution for weak vs. strong field ligands, calculating Crystal Field Stabilisation Energy (CFSE). Magnetic Moment & Hybridisation: Spin-only magnetic moment, inner vs. outer orbital complexes using Spectrochemical Series. Isomerism: Geometrical and optical isomerism in complexes. |
| Aldehydes, Ketones & Carboxylic Acids | Named Condensations: Aldol & Cross-Aldol condensation, Cannizzaro & Cross-Cannizzaro reactions. Test Reactions: Iodoform (haloform) test, Tollens' and Fehling's tests. Nucleophilic Addition: Reactivity trends towards Grignard reagents based on steric and electronic factors. |
| Chemical Bonding & Molecular Structure | Molecular Orbital Theory (MOT): Bond order, bond length, and paramagnetism/diamagnetism of diatomic species VSEPR & Geometry: Predicting shape, geometry, lone-pair counts for interhalogens and xenon compounds Dipole Moment: Non-zero vs. zero dipole moments across geometric isomers and polar structures. |
| Electrochemistry | Nernst Equation: Calculating cell EMF and reaction quotient, equilibrium constant relation. Kohlrausch’s Law & Conductance: Molar conductivity at infinite dilution, degree of dissociation, solubility product calculations. |
Also Check: JEE Mains Chapter Wise Mock Test
How Do High Weightage Chapters for JEE Mains Help in Preparation?
The JEE Mains chapter wise wightage are helpful in strategic preparation for the exam.
- Focus on Key Chapters: By mastering 25-30 important JEE Mains chapters, you can earn 60-65% of the total marks. Aim for a score of 160-180+ marks to reach a percentile of 97-98+.
- Time Efficiency: Topics like Modern Physics and Coordination Compounds need less effort but can give you 2-4 questions each. This helps you get more marks for each hour of study.
- Familiar Question Patterns: High-yield topics often repeat question styles. This reduces surprises on exam day and helps you feel more confident with important concepts.
- Smart Question Strategy: Knowing which chapters are reliable helps you quickly choose questions during the exam. This saves time and reduces the risk of losing marks.
- Build Confidence Early: Mastering high-weight chapters early helps boost your scores in practice tests. This can ease your anxiety and strengthen your focus for later reviews.
Also Check: Marks vs Percentile JEE Mains 2026
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Student Forum
Anything you would want to ask experts?Answered 5 days ago
According to the MSU Baroda CSE Cutoff 2026 for the General AI category, the maximum rank accepted was 900019 in the last round (Round 3).
As seen from the table below, admission for the General and ST category was the toughest and the easiest for the CSE course. For more information, check the table
N
Contributor-Level 10
Answered 5 days ago
The JEE Mains 2027 notification can be expected in the last week of September 2026 or in the first week of October 2026.
A
Contributor-Level 8
Answered 5 days ago
The JEE Mains 2027 session 1 application form is expected to be released in the last week of October 2026.
M
Contributor-Level 8
Answered 5 days ago
NTA will release the JEE Main 2027 exam date soon. The expected exam dates are:
- Session 1: Last week of January 2027
- Session 2: First week of April 2027
N
Contributor-Level 8
Answered 6 days ago
Yes, IEM Kolkata offers JEE Main scholarships to BTech students as financial assistance. Students with rank 1-10,000 in JEE Main are eligible to receive full tuition fee waiver for four-years.
G
Contributor-Level 10
Answered 6 days ago
Yes. Galgotias University accepts both JEE Main and CUET scores for B.Tech admissions. The university states that students with JEE Main/JEE Advanced or CUET scores are given preference in the merit list.
Contributor-Level 7
Answered a week ago
No, a JEE Main score alone is not sufficient for direct entry to UG courses at the TUM. For direct entry to UG courses at TU Munich having a qualifying JEE Advanced score is mandatory.
Students with a JEE Main score and a Class 12th completion certificate will need to take the Studienkolleg (prepar
A
Contributor-Level 10
Answered a week ago
Not always. While most reputed colleges prefer JEE Main scores, some private engineering colleges in Indore also offer direct admission based on Class 12th merit, especially under management quota seats. So, if you haven't cleared JEE Main with a strong rank, you may still get into a decent private
T
Contributor-Level 10
Answered a week ago
Yes, JECRC University grants scholarship to BTech students based on JEE Main scores. Check below score-wise scholarship:
- Candidates with JEE Main percentile score of 85 to 89.99 (General Category), shall get 15% scholarship on Tuition Fee.
- Candidates with JEE Main percentile score of more than 90 (Ge
R
Contributor-Level 10
Answered a week ago
No. While there is an overlap, the GUJCET syllabus is more aligned with state-level board books and is less advanced than JEE Main.
V
Contributor-Level 8
What are the category-wise cutoffs in JEE Main (for CSE) to get into MSU Baroda?