- Important Topics of Hydrogen in JEE Main 2025
- Expected Hydrogen Weightage in JEE Mains 2025
- Hydrogen Weightage in JEE Main 2023
- JEE Main Hydrogen Weightage 2022
- Hydrogen Weightage in JEE Main 2021
- JEE Main Hydrogen Weightage Chemistry (2020-2019)
- Type of Hydrogen Questions in JEE Main 2025
- Best Books for JEE Mains Chemistry 2025
- Faqs
Hydrogen Weightage in JEE Mains 2025
is expected to be 2.5% of
the total Chemistry weightage. Based on the previous year's analysis, students can expect around 1-2 questions on this topic. The Hydrogen chapter is important as it acts as the foundation block connecting other topics in Chemistry. Candidates must master all the topics of the Hydrogen chapter such as Isotopes of Hydrogen, Preparation and Properties of Hydrogen Gas, Structure, Properties, and Uses of Water, Heavy Water and Its Uses, Hydrogen as a Fuel, Hydrogen Economy and Sustainable Energy, Hydrides, Ionic, Covalent, Metallic, and Intermolecular, Hydrogen Peroxide, Preparation, Properties, and Uses etc. By thoroughly preparing all these topics, candidates can maximize their scores in this chapter.
The Chemistry chapters occupy eminent significance in the JEE Main 2025 entrance exam.
JEE Main 2025
candidates must be aware of the chapter-wise weightage for every subject for effective preparation. Some of the topics with high weightage in the JEE Main Chemistry syllabus are Chemical Bonding, Structure of Atoms, Transition Elements & Coordination Chemistry, and Thermodynamics & Gaseous State to name a few.
Also Read: JEE Main 2025 Exam Pattern
Important Topics of Hydrogen in JEE Main 2025
The Hydrogen section of the JEE Main 205 Chemistry Syllabus is a fundamental chapter of Inorganic Chemistry and it is important for building foundational knowledge which connects to other topics in Chemistry. The key concepts covered in Hydrogen have been discussed below.
- Hydrogen Bonding - It deals with the impact on boiling/melting points, solubility, and biological systems.
- Position in the Periodic Table - Unique position because of properties resembling both Group 1 (alkali metals) and Group 17 (halogens).
- Water and Heavy Water - It deals with Properties, structure, and significance in chemical reactions.
- Isotopes of Hydrogen - The isotopes of hydrogen are protium, deuterium, and tritium with key differences in abundance, physical, and chemical properties.
- Hydrides - They are of 3 types namely ionic hydrides which are formed with alkali and alkaline earth metals, covalent hydrides which are formed with non-metals and metallic hydrides which are found in d- and f-block elements.
- Industrial and Environmental Applications - Hydrogen as a sustainable clean energy is used in the Haber process, hydrogenation of oils, and fuel cells.
Expected Hydrogen Weightage in JEE Mains 2025
Aspirants preparing for the JEE Main 2025 exam can check the Hydrogen weightage in JEE Mains 2025 in the following table.
Units | Weightage in Percentage | No. of Questions |
|---|---|---|
Hydrogen | 2.5% | 1-2 |
Also Read: JEE Main 2025 Syllabus PDF
Hydrogen Weightage in JEE Main 2023
Given below is the JEE Main Hydrogen Weightage 2023.
Chapter | Total Questions in Jan Session | Total Questions in April Session |
|---|---|---|
Hydrogen | 12 | 9 |
Also read: JEE Main 2025 Exam Preparation Tips
JEE Main Hydrogen Weightage 2022
Students can examine the JEE Main Hydrogen weightage 2022 below.
Chapters | JEE Main Chemistry Questions in June Session | JEE Main Chemistry Questions in July Session |
|---|---|---|
Hydrogen | 5 | 6 |
Also read: JEE Main Sample Papers with Solutions
Hydrogen Weightage in JEE Main 2021
Check the weightage of the Hydrogen for JEE Main 2021 in the following table.
Chapters | Total Questions in February Session | Total Questions in March Session | Total Questions in July Session |
|---|---|---|---|
Hydrogen | 3 | 5 | 4 |
Also read: JEE Main 2025 Mock Test Free
JEE Main Hydrogen Weightage Chemistry (2020-2019)
Below is the weightage for the Hydrogen as covered in the JEE Main examinations for the years 2020 and 2019.
Chapters | Chapter Weightage 2020 | Chapter Weightage 2019 |
|---|---|---|
Hydrogen | 10 | 13 |
Also Read: Best Books for JEE Main 2025
Type of Hydrogen Questions in JEE Main 2025
In the JEE Main 2025 exam, questions on hydrogen usually cover a variety of topics, focusing on the key concepts and models. In the JEE Main 2025 examination, questions from the Hydrogen chapter generally evaluate conceptual understanding, application of key principles, and problem-solving skills. Based on the past trends and chapter importance, you can expect the following types of questions:
- Theoretical Questions - Hydrogen bonding and its effect on physical properties like boiling and melting points.
- Industrial Applications: Hydrogen in fuel cells, Haber process, or as a reducing agent.
- Numerical/Reaction-Based Questions - Balancing reactions involving hydrogen, like its reaction with metals or non-metals.
- Conceptual Questions - Relation of hydrogen to environmental applications such as hydrogen fuel cells and its potential in clean energy.
Best Books for JEE Mains Chemistry 2025
Chemistry is one of the most difficult papers to qualify in any competitive examination since it comprises fundamental concepts. Below are a few of the best books, which help candidates to secure good marks in the Chemistry section of the JEE Main entrance exam.
- Organic Chemistry by Morrison & Boyd
- NCERT Textbooks for classes 11 and 12 by NCERT
- Organic Chemistry by O P Tandon
- Concept of Physical Chemistry by P Bahadur
- Modern Approach to Chemical Calculations by R.C. Mukherjee
Also Read |
JEE Main Deleted Syllabus 2025
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