JEE Main 21st January 2026 Chemistry Important Topics: The JEE Main 2026 Exam starts on January 21, 2026, and candidates preparing can get insights into the important topics of the most scoring section - Chemistry. The JEE Main 21st January 2026 Chemistry Important Topics are from Organic, Physical, and Inorganic Chemistry.
The Chemistry syllabus is divided into Organic, Inorganic, and Physical Chemistry. While the organic and inorganic sections have a weightage of approximately 30 to 35%, physical chemistry holds a weightage of between 35 and 38%. Based on the 2025 analysis, the Chemistry paper generally follows a balanced distribution across all sections, and most questions are NCERT-based.
Aspirants can check the JEE Main 21st January 2026 Chemistry Important Topics and Expected Number of Questions for different shifts based on the previous year’s trend analysis.
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JEE Main 21st January 2026 Chemistry Important Topics: Expected Number of Questions
Here’s the details table showcasing the average question count per shift based on the previous year’s trends:
| Important Topics | Expected Questions In Shift - 1 | Expected Questions In Shift - 2 |
| Physical Chemistry |
| Thermodynamics and Energetics | 2-3 | 2-3 |
| Some Basic Concepts of Chemistry | 1-2 | 1-2 |
| Mole Concept & Redox | 1-2 | 1-2 |
| Structure of Atom | 1-2 | 1-2 |
| Chemical Kinetics | 1-2 | 1-2 |
| Electrochemistry | 1-2 | 1-2 |
| Organic Chemistry |
| GOC and Reaction Techniques | 3-4 | 3-4 |
| Hydrocarbons | 2-3 | 2-3 |
| Haloalkanes and Haloarenes | 1-2 | 2-3 |
| Compound Containing Nitrogen | 1-2 | 1-2 |
| Aldehydes, Ketones and Carboxylic Acids | 1-2 | 1-2 |
| Biomolecules | 1-2 | 1-2 |
| Inorganic Chemistry |
| Coordination Compounds | 2-3 | 1-2 |
| d and f-Block Elements | 1-2 | 2-3 |
| Chemical Bonding and Molecular Structure | 1-2 | 2-3 |
| Periodic Table & Periodicity | 1-2 | 1-2 |
| Periodic Table & Periodicity | 1-2 | 1-2 |
| Periodic Table & Periodicity | 1-2 | 1-2 |
Based on the above table, the organic chemistry chapters, such as Coordination Compounds and Chemical Bonding, carry a high-weightage. The questions are mostly theory and NCERT-based. Candidates can complete it first to save time for the numerically heavy questions from Organic Chemistry. Further, GOC is the most asked topic in the Organic section and forms the basis for all reaction-based questions.
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