📅 Published on: 24.12.2025
States of Matter – JEE Main PYQs
States of Matter is one of the most important and scoring chapters for JEE Main Chemistry. Almost every year, at least 1–2 questions are asked from this unit, mainly based on numerical problems and direct concepts. With proper practice of previous year questions (PYQs), students can easily secure full marks from this chapter.
What Does States of Matter Cover for JEE Main?
1. States of Matter
- Solid, Liquid and Gas
- Shape, volume and compressibility
- Intermolecular forces
- Effect of temperature and pressure
2. Gas Laws (Most Important for PYQs)
Gas laws form the backbone of this chapter. Most JEE Main PYQs are directly based on:
- Boyle’s Law
- Charles’ Law
- Avogadro’s Law
- Combined Gas Law
- Ideal Gas Equation: PV = nRT
Questions usually test correct substitution, unit conversion and temperature in Kelvin.
3. Kinetic Theory of Gases
This is a high-frequency PYQ area in JEE Main. Commonly asked topics include:
- Average speed
- Root mean square (RMS) speed
- Most probable speed
Most PYQs are formula-based and can be solved in less than one minute.
4. Real Gases and Van der Waals Equation
- Deviation from ideal gas behaviour
- Van der Waals equation
- Critical temperature and pressure
- Compressibility factor
These questions are usually conceptual and test understanding rather than lengthy calculations.
5. Liquids and Surface Phenomena
Occasional PYQs are asked from:
- Surface tension
- Capillary rise
- Viscosity
- Effect of temperature on liquids
States of Matter – JEE Main PYQ Weightage
| Year | Number of Questions | Marks |
|---|---|---|
| 2024 | 1–2 | 4–8 |
| 2023 | 2 | 8 |
| 2022 | 1 | 4 |
| 2021 | 1 | 4 |
States of Matter – JEE Main PYQs PDF Download
Download States of Matter JEE Main PYQs PDF
Download PDFThis PDF includes chapter-wise PYQs, exam-oriented problems and is ideal for quick revision.
How to Score Full Marks from States of Matter
- Memorise all important formulas
- Practice PYQs before attempting mock tests
- Focus on gas laws and kinetic theory
- Avoid mistakes in unit conversion
- Revise short notes multiple times
Conclusion
States of Matter is a highly scoring chapter in JEE Main Chemistry. With limited theory, fixed formulas and repeated PYQ patterns, this chapter offers guaranteed marks when prepared smartly. Practicing previous year questions from the PDF will improve confidence, speed and accuracy.
