Chemistry - Ionic Equilibrium
Practise 8 NEST (NISER) previous year questions on Ionic Equilibrium, compiled from papers spanning 2015 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.
Ionic Equilibrium has been asked in 7 of the 16 years of NEST (NISER) papers analysed (2011–2026), with 8 questions in all. 0% of them were easy, 63% moderate and 38% tough. Most of its questions came from 2019, 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 4 topics are not weighted equally: PH of solutions (4 questions, 50%), Solubility (2 questions, 25%), and Ionic Product of Water (1 question, 13%) have been asked the most. PH of solutions has also led over the last five years, with 2 questions. PH of solutions has produced the most tough questions (2).
- 1is a sparingly soluble salt with solubility product in aqueous medium at some given temperature. It is observed that upon addition of a high2026Solubility
- 2Consider two sparingly soluble salts and . At temperature , the solubility products of these two salts are found to be equal. At a higher te2024 (Session 1)Solubility
- 3The equation appropriate for the exact calculation of pH of an aqueous solution of HCl at a concentration (CHCl), close to , is given by2023 (Session 2)PH of solutions
- 4To 5 mL of of and 5 mL of 0.1 N NaOH solutions are added. The pH of the resulting solution is2022 (Session 1)PH of solutions
- 5Two vessels X and Y contain aqueous solutions of a weak acid HA and its salt NaA , respectively. The following two equilibria and , exist in2019 (Session 1)PH of solutions
- 6Consider three vessels containing aqueous solutions of a weak acid HA (initial concentration , degree of dissociation ), another weak acid H2019 (Session 2)Theories of Acids and Bases
- 7A weak acid has the three consecutive dissociation constants and in water as and respectively at room temperature. A metal M forms salt MA w2017PH of solutions
- 8The exact concentration of ions in an aqueous HCl solution of arbitrary concentrati can be obtained from the expression2015Ionic Product of Water
Frequently Asked Questions
1.How many questions are available for Ionic Equilibrium?
This chapter includes 8 questions compiled from NEST (NISER) papers spanning 2015 to 2026.
2.Are these questions only from NEST (NISER), or from other exams too?
These are NEST (NISER) questions specifically for the Ionic Equilibrium chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.
3.Is Ionic Equilibrium an important chapter for NEST (NISER) Chemistry?
Ionic Equilibrium has appeared in 7 of the 16 years of NEST (NISER) papers covered here, with 8 questions across 8 papers - about one per paper it appears in.
4.What is the difficulty level of Ionic Equilibrium questions in NEST (NISER)?
Of the 8 questions analysed for this chapter, 0% are easy, 63% moderate and 38% tough. 2019 had the most, with 2 questions.
5.Which topics in Ionic Equilibrium should I focus on?
These topics have carried the most weightage in Ionic Equilibrium:
- PH of solutions - 4 questions (50%)
- Solubility - 2 questions (25%)
- Ionic Product of Water - 1 question (13%)
- PH of solutions has produced the most tough questions (2).
6.Is Ionic Equilibrium's weightage in NEST (NISER) going up or down?
Across all 8 papers analysed, Ionic Equilibrium 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.