Chemistry, accounting for a third of all questions in the national-level engineering entrance exam, the Joint Entrance Examination (JEE) Main, is often considered the most scoring of the three papers. In the JEE Main, every mark bears huge importance.
Conducted by the National Testing Agency (NTA) for admission to some of the top engineering colleges in the country such as National Institutes of Technology (NIT) – the JEE Main is intensely competitive. The last one, NTA JEE Main 2024 January session, was qualified by just 5.5 per cent of the total number of candidates who wrote it. But with careful preparation and the right strategy, it is possible to score very well in the subject.
The list of required documents for JEE Main 2026 registration, along with their dimensions, is as follows.
Photograph | 80% face (without mask) visible, including ears against a white background, 10 kb to 200 kb | JPG/JPEG format |
Signature | 10 kb to 100 kb | |
Class 10 mark sheet | 50 kb to 300 kb | PDF format |
PwD certificate (If applicable) | ||
| Identity Proof | 10 kb to 200 kb | JPG/JPEG format |
First, it is very useful to know what the JEE Main is like and then formulate the best suitable strategy. Questions from the previous year are a good way to assess the difficulty level of the JEE Mains. They can help in gaining a broader understanding of how important certain topics are from the perspective of the exam, and the difficulty level of the questions. Many of these topics are covered in Class 11 and Class 12 Chemistry NCERT textbooks.
Here’s an analysis of the JEE Main 2024 January session to help you prepare for the next exam.
Also Read,
The exam was held in 10 shifts and 300 questions from all those shifts were from Chemistry. Careers360 analysed all 300 questions and the tables below show how many questions came from each chapter in JEE Main 2024 January session.
JEE Main: Chemistry Questions
Chapter | Number of Questions |
Some Basic Principles of Organic Chemistry | 32 |
Hydrocarbons | 24 |
Redox Reaction and Electrochemistry | 21 |
Chemical Bonding and Molecular Structure | 20 |
Organic Compounds containing Oxygen | 19 |
Co-ordination Compounds | 17 |
Atomic Structure | 16 |
p- Block Elements | 16 |
d - and f - BLOCK ELEMENTS | 15 |
Some basic concepts in chemistry | 15 |
Equilibrium | 13 |
Purification and Characterisation of Organic Compounds | 13 |
Solutions | 13 |
Classification of Elements and Periodic table | 12 |
Chemical kinetics | 10 |
Chemical Thermodynamics | 10 |
Organic Compounds containing Halogens | 9 |
Biomolecules | 8 |
Organic Compounds Containing Nitrogen | 8 |
Principles Related to Practical Chemistry | 7 |
General Principle and Process of Isolation of metals | 1 |
Polymers | 1 |
Grand Total | 300 |
The discipline of Chemistry is divided into Physics, Inorganic and Organic.
Given below is a list of concepts that are considered important from each of the three branches of Chemistry and the number of questions asked from each last year. Questions from these topics also tend to repeat.
JEE Main Syllabus: Physical Chemistry
Concept | Number of Questions |
Integrated rate equations | 21 |
Galvanic cells and Nearnst equation | 12 |
Colligative properties and Van't Hoff Factor | 11 |
Buffer Solutions | 7 |
Laws if Thermodynamics | 7 |
Quantum mechanical model of atom | 5 |
Stoichiometry, Stoichiometric Calculations | 4 |
JEE Main Syllabus: Inorganic Chemistry
Concept | Number of Questions |
Bonding in Coordination compounds | 14 |
General properties of the transition elements | 9 |
Some important compounds of halogens | 8 |
100% Placement Record | Highest CTC 54 LPA | NAAC A++ Accredited | Ranked #62 in India by NIRF Ranking 2025 | JEE & JET Scores Accepted
Among Top 30 National Universities for Engineering (NIRF 2024) | 30+ Specializations | AI Powered Learning & State-of-the-Art Facilities
JEE Main Syllabus: Organic Chemistry
| Concept | Number of Questions |
| Fundamental concepts in Organic reaction mechanism | 10 |
| Chemical properties of haloalkanes and haloarenes | 10 |
| Properties of amines | 9 |
| Chemical reactions of aldehydes and ketones | 7 |
Now let us understand these concepts one by one.
Physical Chemistry is more analytical in nature and involves numerical and the application of various concepts in solving questions. It is a highly-scoring component of Chemistry. Questions are of easy-to-moderate difficulty level. Below mentioned are some of the most important topics for the JEE-Main exams.
This is an important topic from the chapter “Chemical Kinetics” in Class 12 NCERT. Integrated rate equation is the most important topic for understanding the kinetics of chemical reactions. Integrated rate equation relates to the concentrations of reactants or products to time, and helps in analysing the rate of reaction and time taken. For JEE Main, it is important to understand how to use the Integrated rate equation in determining reaction orders, rate constants, and half-life values. Numericals are asked from this topic which are doable if sufficient practice is done before examination.
From the Nernst Equation, important aspects are:
Galvanic Cells: Structure and components of galvanic cells (anode, cathode, salt bridge), Numerical based on finding the electrode potentials (E°) to predict cell spontaneity.
Nernst Equation: Students must understand the derivation of the Nernst equation and its application application for non-standard conditions. Questions are also from calculating the cell potential (E) at different concentrations and temperatures.
This topic belongs to the "Solutions" Chapter of NCERT class 12th. Students must focus on:
Colligative Properties: Understanding the concept of colligative properties which includes vapour pressure lowering, boiling point elevation, freezing point depression and how they depend on the concentration of solute (Molality). Numericals are asked from this topic which involves the different formulas for respective colligative proeties. (e.g., ΔTb = Kb ✖ m).
Van't Hoff Factor: A strong understanding of the definition of the Van't Hoff factor (i) is required as to is used in many numerical. Van't Hoff factor (I) is defined as the ratio of moles of particles in solution to moles of solute dissolved. Application Van't Hoff factor to predict the extent of dissociation of electrolytes in solution and its impact on colligative properties like freezing point depression or osmotic pressure is an important area of understanding.
Inorganic chemistry mainly deals with the behaviour of organometallic and inorganic compounds. It covers non-carbon chemical compounds. Below are some of the most important topics from this section.
Coordination compounds are the most important and scoring chapter of Inorganic Chemistry. Students must focus on Coordination Chemistry basics which involves understanding the concepts of coordination numbers, ligands, metal-ligand bonding (including dative bonding), and coordination geometries (e.g., octahedral, tetrahedral). Molecular Orbital Theory (MOT) is an important topic from which many questions are asked. The study of MOT to comprehend bonding and electronic structure in coordination complexes is important.
From this topic, students must focus on the chemical properties of Halogens and their various compounds. Reactions of important halogen compounds such as halogen acids (e.g., HCl, HBr), halogen oxides (e.g., Cl2O, Br2O), and interhalogen compounds (e.g., ClF3, BrF5) must be practised before the examination. Also, study of the molecular structures and bonding characteristics of these compounds to predict their physical and chemical properties is important.
If understood well, Organic Chemistry can pay rich dividends. The crux of Organic Chemistry lies in understanding the basic principles discussed in the chapter “Organic Chemistry- Basic Principles and Techniques’’. All the concepts are interrelated and hence, holistic understanding is a must.
This is the fundament chapter for understanding complete organic chemistry. If this chapter is understood well with all the concepts, the rest of the organic chemistry chapters become easy. Students must be well versed in electron movement which involves the understanding of electron flow in organic reactions, including mechanisms such as nucleophilic substitution (SN1 and SN2), elimination (E1 and E2), addition, and rearrangement reactions. A strong understanding of fundamental concepts like electrophiles, nucleophiles, leaving groups, carbocation stability, and reaction intermediates (e.g., carbocations, carbanions, radicals) is needed to score well in the examination.
This chapter mainly includes understanding nucleophilic substitution reactions (SN1 and SN2) and elimination reactions (E1 and E2) that haloalkanes undergo. Along with this focus must be on understanding the reactivity of haloarenes towards nucleophilic aromatic substitution reactions (e.g., Finkelstein reaction, Sandmeyer reaction).
For a detailed explanation of important concepts of Chemistry, visit - JEE Main Exam's High Scoring Chapters and Topics and download the E-Book for their reference.
On Question asked by student community
Hey there,
Your OBC-NCL certificate will not be valid for the JEE Mains 2026 application as it is from June 2024. You can apply for a new one as soon as possible. For the JEE Mains, the OBC-NCL certificate should be issued on or after 1 April 2025.
And as for your Aadhar, the mistakes in your name and Date of Birth will be an issue during the document verification process. The details should match your 10th-class certificate. So you will also need to update it as soon as possible.
Hope it helps!!!
Hello Satyam,
Yes, your EWS certificate is valid.
In Bihar, the EWS certificate can be issued by the Circle Officer, BDO, SDO, or DM. So a certificate signed by the Circle Officer (Revenue Officer) is acceptable.
If the format of your certificate is the same as the Central Government EWS format, then it is valid for JEE Main registration and also for JoSAA counselling. The heading “Government of Bihar” does not create any problem.
Just remember one point:
For
JoSAA 2026
, you will need an EWS certificate issued on or after 1 April 2025. Even if your current certificate works for registration, you must update it before counselling.
Hope it helps !
Hello murali
No, your son is not eligible for OBC NCL for IIT JEE because you fall in the "creamy layer" occupational category, regardless of your current employment status or family income. Students whose family income is less than Rs. 8 lakhs annually and they are not belong to the "creamy layer".
Note -
Thank You
Hello,
You can fill the JEE Main form even if you are a private candidate
Write the
name of the school/board from where you are appearing as a private candidate
.
If your Class 12 admit card or registration slip shows a school/centre name, use that exactly.
If your board lists you as a “Private Candidate” under the board name , then write:
CBSE – Private Candidate
(or your board name – Private Candidate)
Use the pin code of the examination centre/school mentioned on your Class 12 private candidate admit card or registration details.
If your board does not give any school address and only shows the regional office address, then use the regional office address pin code given by your board.
Hope it helps !
Hello Aspirant
You should not leave the OBC-NCL certificate ID blank in the JEE Main form it can create problems later.
NTA wants the certificate details while filling the form, not just at counselling. If you can, apply for the OBC-NCL certificate immediately so you get the ID on time.
If you fail to submit the certificate during counselling, your category will shift to General. It’s safer to enter OBC-NCL only if you’re sure you’ll get the certificate before counselling.
Hope it will help you
Among Top 30 National Universities for Engineering (NIRF 2024) | 30+ Specializations | AI Powered Learning & State-of-the-Art Facilities
Recognized as Institute of Eminence by Govt. of India | NAAC ‘A++’ Grade | Upto 75% Scholarships
Attempt JEE Main online mock test based on the updated syllabus. Check your preparation and identify your weak points.
Ranked #43 among Engineering colleges in India by NIRF | Highest Package 1.3 CR , 100% Placements
NAAC A++ Grade | Recognized as Category-1 Deemed to be University by UGC | 41,000 + Alumni Imprints Globally
60+ Years of Education Legacy | UGC & AICTE Approved | Scholarship Worth 6 Crores | H-CTC 35 LPA
