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Chemistry - Solutions

Practise 11 NEST (NISER) previous year questions on Solutions, compiled from papers spanning 2013 to 2026. 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.

Solutions has been asked in 10 of the 16 years of NEST (NISER) papers analysed (2011–2026), with 11 questions in all. 0% of them were easy, 82% moderate and 18% tough. Most of its questions came from 2023, with 2 questions that year. In the last three years (2024–2026) it had 2 questions across 4 papers, about 0.5 per paper.

The chapter's 3 topics are not weighted equally: Vapour pressure and raoult's law (5 questions, 45%), Colligative Properties and Abnormal Molecular Masses (4 questions, 36%), and Solubility and Concentration of Solutions (2 questions, 18%) have been asked the most. Vapour pressure and raoult's law has also led over the last five years, with 3 questions. Vapour pressure and raoult's law has produced the most tough questions (1).

  1. 1X, Y, and Z are three volatile liquids, which when mixed make an ideal solution. At a given temperature , the constituents X, Y, and Z have 2026Vapour pressure and raoult's law
  2. 2Let the vapour pressure of a liquid be and at two different temperatures and , respectively. They are related by an equation given by where,2025Vapour pressure and raoult's law
  3. 3A mixture of 0.1 mol of a weak acid HX and 0.2 mol of another weak acid HY is dissolved in 1 kg of water. The degrees of ionization of the t2023 (Session 1)Solubility and Concentration of Solutions
  4. 4Consider three liquids: water, dilute aqueous solution of glucose, and dilute aqueous solution of NaCl . The aqueous solutions of glucose an2023 (Session 2)Colligative Properties and Abnormal Molecular Masses
  5. 5Consider the UV-Visible light of intensity, , traversing through an aqueous solution of an organic compound placed in a cuvette of length . 2022 (Session 2)Vapour pressure and raoult's law
  6. 6The elevation of boiling point and depression of freezing point of a certain solution of a monobasic acid HA in benzene are and , respective2021 (Session 1)Colligative Properties and Abnormal Molecular Masses
  7. 7Two dilute solutions, A and B are prepared by dissolving two completely dissociable solutes, MA (Mol wt. X) and (Mol wt. 2X) in water, respe2019 (Session 2)Colligative Properties and Abnormal Molecular Masses
  8. 8A mixture of two miscible volatile ideal liquids P and Q (obeying Raoult's law) is kept in a vessel (molar ratio of P and Q in the mixture i2017Vapour pressure and raoult's law
  9. 9An aqueous solution containing a nonvolatile solute is heated in an open vessel till the boiling point is reached. Thereafter, the boiling i2016Colligative Properties and Abnormal Molecular Masses
  10. 10The vapour pressure of three liquids and R , of nearly equal molecular masses is shown as a function of temperature below. The correct state2015Vapour pressure and raoult's law
  11. 11The plot of solubility of some salts against temperature is given on the right. A salt like NaCl can be recovered fully, when dissolved in a2013Solubility and Concentration of Solutions

Frequently Asked Questions

1.How many questions are available for Solutions?

This chapter includes 11 questions compiled from NEST (NISER) papers spanning 2013 to 2026.

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

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

3.Is Solutions an important chapter for NEST (NISER) Chemistry?

Solutions has appeared in 10 of the 16 years of NEST (NISER) papers covered here, with 11 questions across 11 papers - about one per paper it appears in.

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

Of the 11 questions analysed for this chapter, 0% are easy, 82% moderate and 18% tough. 2023 had the most, with 2 questions.

5.Which topics in Solutions should I focus on?

These topics have carried the most weightage in Solutions:

  • Vapour pressure and raoult's law - 5 questions (45%)
  • Colligative Properties and Abnormal Molecular Masses - 4 questions (36%)
  • Solubility and Concentration of Solutions - 2 questions (18%)
  • Vapour pressure and raoult's law has produced the most tough questions (1).
6.Is Solutions's weightage in NEST (NISER) going up or down?

Across all 11 papers analysed, Solutions has averaged about 1.0 questions per paper. In the last three years (2024–2026), that average has fallen, at about 0.5 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.