States Of Matter carries approximately 2-3% weightage under the JEE Advanced 2025 exam according to the new JEE Advanced 2025 syllabus and previous years trends. The subject is considered moderate as per conceptual depth. Common concepts such as Gas Laws, Kinetic Theory of Gases, Ideal Gas Equation, and Real Gas Behavior are repeatedly asked in JEE Advanced previous year question papers. Hence, revising these core concepts is highly recommended for good exam performance.

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Most important Topics for JEE Advanced 2025 (States Of Matter):

Based on the JEE Advanced previous year paper trends, the following are the high-weightage topics in JEE Advanced 2025:

  • Ideal Gas Equation and Gas Laws (JEE Advanced 2016, Paper 1)
  • Kinetic Theory of Gases (JEE Advanced 2018, Paper 2)
  • Real Gas Behavior and Van der Waals Equation (JEE Advanced 2019, Paper 1)
  • Graham’s Law of Diffusion and Effusion (JEE Advanced 2017, Paper 2)
  • Boyle’s Law, Charles’s Law, and Avogadro’s Law (JEE Advanced 2021, Paper 1)
  • Partial Pressure and Dalton’s Law of Partial Pressures (JEE Advanced 2015, Paper 1)

JEE Advanced previous year question papers and mock tests can assist IIT Aspirants to achieve higher rankings in JEE Advanced 2025.

Listed below the most repeated questions JEE Advanced Previous Year Questions (PYQs) for States Of Matter along with detailed solutions
 

1. A closed vessel contains 10 g of an ideal gas X at 300 K, which exerts 2 atm pressure. At the same temperature, 80 g of another ideal gas Y is added to it and the pressure becomes 6 atm. The ratio of root mean square velocities of X and Y at 300 K is
JEE Advanced 2014 JEE Advanced
A 2:√3
B 2:1
C 1:2
D 2:1
2. Which of the following statement(s) is(are) correct regarding the root mean square speed (urms) and average translational kinetic energy (Eavg) of a molecule in a gas at equilibrium?
JEE Advanced 2018 JEE Advanced
A urms is doubled when its temperature is increased four times
B Eavg is doubled when its temperature is increased four times
C Eavg at a given temperature does not depend on its molecular mass
D urms is inversely proportional to the square root of its molecular mass
3. For one mole of a van der Waals’ gas when b = 0 and T = 300 K, the pV vs 1/V plot is shown below. The value of the van der Waals’ constant a (atm L mol-2)
JEE Advanced 2012 JEE Advanced
A 1
B 4.5
C 1.5
D 3
4. According to kinetic theory of gases
JEE Advanced 2011 JEE Advanced
A collisions are always elastic
B heavier molecules transfer more momentum to the wall of the container
C only a small number of molecules have very high velocity
D between collisions, the molecules move in straight lines with constant velocities
5. The term that corrects for the attractive forces present in a real gas in the van der Waals’ equation is
JEE Advanced 2000 JEE Advanced
A nb
B n2a/V2
C -(n2a/V2)
D -nb
6. At 100°C and 1 atm, if the density of liquid water is 1.0 g cm-3 and that of water vapour is 0.0006 g cm-3, then the volume occupied by water molecules in 1 litre of steam at that temperature
JEE Advanced 2000 JEE Advanced
A 6 cm3
B 60 cm3
C 0.6 cm3
D 0.06 cm3

JEE Advanced 2025 Chapter-Wise Weightage For Chemistry

Chapter Name Approx. Weightage (%) No. of Expected Questions
Chemical Thermodynamics 6–8% 2
Atomic Structure 5% 1–2
Chemical Bonding & Molecular Structure 6–7% 2
Equilibrium (Ionic + Chemical) 7–9% 2–3
Electrochemistry 5–6% 1–2
Solutions & Colligative Properties 4–5% 1–2
Redox Reactions 3% 1
Surface Chemistry 3% 1
Solid State 3–4% 1
Kinetics 5–6% 1–2
Organic Chemistry (General + Named Reactions) 12–14% 4–5
Biomolecules, Polymers, Chemistry in Everyday Life 4–5% 1–2
Coordination Compounds 6–7% 2
The d- and f-Block Elements 5% 1–2
Qualitative Inorganic Analysis 4% 1

JEE Advanced 2025 Difficulty Analysis For Chemistry

Chapter Name Difficulty Level (Easy / Moderate / Hard)
Chemical Thermodynamics Moderate to Hard
Atomic Structure Moderate
Chemical Bonding Moderate
Equilibrium Hard
Electrochemistry Hard
Solutions Moderate
Redox Reactions Easy
Surface Chemistry Easy
Solid State Moderate
Chemical Kinetics Moderate
Organic Chemistry (Full) Moderate to Hard
Biomolecules & Polymers Easy
Coordination Compounds Hard
d- and f-Block Elements Moderate
Inorganic Qualitative Analysis Hard

Download Last 10 years JEE Advanced Previous Year Question Papers (2024 - 2016)

IIIT JEE Advanced Previous Year Question Papers

You can download free IIT JEE Advanced Previous Year Question Paper PDFs from the table provided below:-

JEE Advanced Paper Name Question Paper Link
JEE Advanced 2024 Question Paper PDF Click Here
JEE Advanced 2023 Question Paper PDF Click Here
JEE Advanced 2022 Question Paper PDF Click Here
JEE Advanced 2021 Question Paper PDF Click Here
JEE Advanced 2020 Question Paper PDF Click Here
JEE Advanced 2019 Question Paper PDF Click Here
JEE Advanced 2018 Question Paper PDF Click Here
JEE Advanced 2017 Question Paper PDF Click Here
JEE Advanced 2016 Question Paper PDF Click Here

Frequently Asked Questions:-

1. Is State of Matter deleted for JEE Advanced 2025?

Answer:

No, States of Matter is not removed for JEE Advanced 2025! States of Matter remains a topic in the Chemistry part as per the new JEE Advanced 2025 syllabus. Topics such as Gas Laws, Kinetic Theory of Gases, and Real Gas Behavior are there. But always refer to the official syllabus on the JEE Advanced website since sometimes tiny topics get cut out or revised. Because States of Matter carries a weightage of approximately 2-3%, it's advisable to learn it thoroughly in order to obtain those marks!

2. Do questions repeat in IIT?

Answer:

JEE Advanced questions (proposed by IITs) usually don't repeat, but ideas tend to! The JEE Advanced exam pattern emphasizes assessing central concepts, so equations like Ideal Gas Equation, Stoichiometry, or Coordinate Geometry are presented in varying ways each year. For eg, a question related to Graham's Law of Diffusion is asked one year as a numerical and another time as a concept question. That's why practicing previous year questions (PYQs) is extremely useful—it helps realize how IITs turn the same concepts around. Therefore, although the same question may not be asked, practicing PYQs can make preparation that much simpler!

3. Where do I download States of Matter JEE Advanced PYQs for practice?

Answer:

Previous year question practice is a necessity in order to prepare well for JEE Advanced! You can download a States of Matter JEE Advanced PYQ PDF from Collegedunia, which is an excellent material for students aspiring to take JEE. Collegedunia also has a States of Matter JEE Advanced PYQ PDF download facility, so you can save the file and practice offline. In case you want a particular year, such as States of Matter JEE Advanced PYQ 2022, Collegedunia has year-specific collections of problems with solutions.

4. How do I get chapter-wise PYQs for States of Matter for JEE Mains and Advanced?

Answer:

At Collegedunia, you can download the States of Matter JEE Mains Questions PDF and States of Matter PYQ JEE Mains to practice questions from previous years. For JEE Advanced, Collegedunia also has JEE Advanced PYQ Chapterwise PDF 2023 and JEE Advanced PYQ Chapter Wise PDF 2024 that organize questions on the basis of topic and year. These chapter-wise PDFs focus on States of Matter topics like:

Gas Laws and Real Gas Behavior

It is easy to prepare for JEE Mains and Advanced examinations from these.