States of Matter is a Class 11 Chemistry chapter that carries about 2.5% of the Chemistry questions in NEET. Practise it with 39 questions covering 4 topics, each with an explanation.
Sets of 15 questions that adapt to your level, with an explanation for every answer.
Across the 13 previous year papers, States of Matter had 12 questions, about 0.9 a year. The most in one paper was 2, in NEET 2018.
| Paper | Questions from this chapter |
|---|---|
| NEET 2026 | 0 |
| NEET 2025 | 0 |
| NEET 2024 | 1 |
| NEET 2023 | 2 |
| NEET 2022 | 2 |
| NEET 2021 | 2 |
| NEET 2020 | 1 |
| NEET 2019 | 1 |
| NEET 2018 | 2 |
| NEET 2017 | 0 |
| NEET 2016 | 0 |
| Re-AIPMT 2015 | 1 |
| AIPMT 2014 | 0 |
8 questions from the practice bank, spread across the chapter's topics. The full set is in the app.
At constant temperature, the volume of a fixed mass of gas is halved. Its pressure:
Answer: B. doubles
Why: Boyle's law gives PV = constant at fixed temperature, so halving the volume doubles the pressure.
As the temperature of a gas is raised, the Maxwell distribution of molecular speeds:
Answer: A. shifts to higher speeds and becomes broader and flatter
Why: The most probable speed rises, and the fraction of molecules with high speeds grows.
The correct order of the strengths of intermolecular forces is:
Answer: B. ion–dipole > hydrogen bonding > dipole–dipole > London forces
Why: Typical bond energies fall from ion–dipole through hydrogen bonds to dispersion forces.
In the van der Waals equation, the gas whose molecules have stronger attractive forces has a:
Answer: B. larger value of the constant a, and it is more easily liquefied
Why: The pressure correction is a(n/V)².
A gas of volume 1 L at 27 °C and 1 atm is changed to 2 atm and 127 °C. The new volume is:
Answer: B. 0.67 L
Why: V₂ = V₁(P₁/P₂)(T₂/T₁) = 1 × (1/2) × (400/300).
According to the kinetic theory, the average kinetic energy of a gas becomes zero at:
Answer: C. absolute zero (0 K)
Why: The average kinetic energy is proportional to the absolute temperature.
A liquid droplet tends to adopt a spherical shape because:
Answer: B. a sphere has the minimum surface area for a given volume, minimising surface energy
Why: Surface tension makes the liquid minimise its surface energy, and for a fixed volume the sphere is the shape of least surface area.
For CO₂ at moderate pressures, the compressibility factor Z is less than 1 because:
Answer: D. attractive forces between molecules dominate
Why: At very high pressures, the finite size of the molecules makes Z greater than 1.
States of Matter carries about 2.5% of the Chemistry questions in NEET. Across the 13 previous year papers on NeetVictory it appeared 12 times, about 0.9 questions a year.
States of Matter is a Class 11 Chemistry chapter in the NCERT syllabus.
NeetVictory has 39 practice questions on States of Matter, each with an explanation, in sets of 15 that adapt to your level. This page shows a free sample.
NeetVictory