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Chemistry - States of Matter

Practise 9 NEST (NISER) previous year questions on States of Matter, compiled from papers spanning 2011 to 2022. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty NEST (NISER) tests.

States of Matter has been asked in 7 of the 16 years of NEST (NISER) papers analysed (2011–2026), with 9 questions in all. 0% of them were easy, 67% moderate and 33% tough. Most of its questions came from 2022, with 2 questions that year. In the last three years (2024–2026) it had 0 questions across 4 papers, about 0 per paper.

The chapter's 4 topics are not weighted equally: Real Gases and Van der Waal's Equation (6 questions, 67%), Kinetic theory of gases (1 question, 11%), and Mixture of gases (1 question, 11%) have been asked the most. Real Gases and Van der Waal's Equation has also led over the last five years, with 1 question. Real Gases and Van der Waal's Equation has produced the most tough questions (2).

  1. 1The Pressure(P) - Density ( ) plot of a cyclic process involving an ideal gas is shown below. Four representations of this process using oth2022 (Session 1)Gas laws and Ideal Gas Equation
  2. 2Consider one mole of a real gas obeying the van der Waals equation. The correct statement regarding the variation of volume with the van der2022 (Session 2)Real Gases and Van der Waal's Equation
  3. 3Assume that fullerene in gas phase behaves as a van der Waals gas. The van der Waals constant, , for fullerene gas is . The correct statemen2021 (Session 1)Real Gases and Van der Waal's Equation
  4. 4One litre of water is kept in a closed two litre vessel at temperature T with no air in the space above the liquid (System 1). Another ident2021 (Session 1)Mixture of gases
  5. 5Consider one mole of a gas in a closed vessel fitted with a movable piston. At constant temperature ( ), the pressure of the gas is increase2020 (Session 2)Real Gases and Van der Waal's Equation
  6. 6The internal energy per mole of an ideal gas is denoted by . The same for a real gas obeying van der Waals equation is . Assuming the averag2018Real Gases and Van der Waal's Equation
  7. 7Consider the isothermal reversible expansion of an ideal gas and a real (van der Waals) gas, from the same initial volume to the same final 2015Real Gases and Van der Waal's Equation
  8. 8The probability distribution for the speed of molecules for an ideal gas at temperature , is given by where is the mass of a molecule and is2012Kinetic theory of gases
  9. 9For a gas obeying van der Waals equation, the van der Waals molar intermolecular attraction is given by , where, is a positive constant and 2011Real Gases and Van der Waal's Equation

Frequently Asked Questions

1.How many questions are available for States of Matter?

This chapter includes 9 questions compiled from NEST (NISER) papers spanning 2011 to 2022.

2.Are these questions only from NEST (NISER), or from other exams too?

These are NEST (NISER) questions specifically for the States of Matter chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.

3.Is States of Matter an important chapter for NEST (NISER) Chemistry?

States of Matter has appeared in 7 of the 16 years of NEST (NISER) papers covered here, with 9 questions across 8 papers - about one per paper it appears in.

4.What is the difficulty level of States of Matter questions in NEST (NISER)?

Of the 9 questions analysed for this chapter, 0% are easy, 67% moderate and 33% tough. 2022 had the most, with 2 questions.

5.Which topics in States of Matter should I focus on?

These topics have carried the most weightage in States of Matter:

  • Real Gases and Van der Waal's Equation - 6 questions (67%)
  • Kinetic theory of gases - 1 question (11%)
  • Mixture of gases - 1 question (11%)
  • Real Gases and Van der Waal's Equation has produced the most tough questions (2).
6.Is States of Matter's weightage in NEST (NISER) going up or down?

Across all 8 papers analysed, States of Matter has averaged about 1.1 questions per paper. In the last three years (2024–2026), that average has fallen, at about 0.0 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.