Chemistry - Electrochemistry
Practise 9 IAT (IISER) previous year questions on Electrochemistry, compiled from papers spanning 2017 to 2025. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty IAT (IISER) tests.
Electrochemistry has been asked in 7 of the 9 years of IAT (IISER) papers analysed (2017–2026), with 9 questions in all. 0% of them were easy, 100% moderate and 0% tough. Most of its questions came from 2024, with 1 question that year. In the last three years (2023–2026) it had 1 question across 3 papers, about 0.3 per paper.
The chapter's 2 topics are not weighted equally: Cells and Electrode Potential, Nernst Equation (7 questions, 78%) and Conductance and Conductivity (2 questions, 22%) have been asked the most. Cells and Electrode Potential, Nernst Equation has also led over the last five years, with 3 questions.
- 1What is the value of ? [The standard reduction potential values are , and ]2025Cells and Electrode Potential, Nernst Equation
- 2During the charging and discharging of a lead-acid battery (a Pb anode, a grid of Pb packed with as cathode, and an aqueous solution of as a2025Cells and Electrode Potential, Nernst Equation
- 3Consider the following data for KCl solution at a particular temperature: What is the value of the limiting molar conductivity?2024Conductance and Conductivity
- 4An aqueous solution contains 1.0 M of and 0.001 M of ions at and ions do not interact with each other. This solution is put in an electrolyt2022Cells and Electrode Potential, Nernst Equation
- 5The time required for reducing 1 mole of .) to .) when a current of is passed during electrolysis is2021Cells and Electrode Potential, Nernst Equation
- 6The molar conductivity of 0.00241 M acetic acid is . If the limiting molar conductivity at 298 K is , what is the dissociation constant ( )?2020Conductance and Conductivity
- 7For a cell for the half cells are given as: at . What is the value of , where is the equilibrium constant for the reaction ? Given, .2019Cells and Electrode Potential, Nernst Equation
- 8At \(25^{ } {C}\), the standard reduction potential for the half-cell reaction \( {Zn}( {~s})+2 {H}^{+}( {aq}) {Zn}^{2+}( {aq})+ {H}_2( {~g}2018Cells and Electrode Potential, Nernst Equation
- 9Electric current was passed through an aqueous solution of using two Pt electrodes. After some time, the blue color of the solution disappea2017Cells and Electrode Potential, Nernst Equation
Frequently Asked Questions
1.How many questions are available for Electrochemistry?
This chapter includes 9 questions compiled from IAT (IISER) papers spanning 2017 to 2025.
2.Are these questions only from IAT (IISER), or from other exams too?
These are IAT (IISER) questions specifically for the Electrochemistry chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.
3.Is Electrochemistry an important chapter for IAT (IISER) Chemistry?
Electrochemistry has appeared in 8 of the 10 years of IAT (IISER) papers covered here, with 9 questions across 8 papers - about one per paper it appears in.
4.What is the difficulty level of Electrochemistry questions in IAT (IISER)?
Of the 9 questions analysed for this chapter, 0% are easy, 100% moderate and 0% tough. 2024 had the most, with 1 question.
5.Which topics in Electrochemistry should I focus on?
These topics have carried the most weightage in Electrochemistry:
- Cells and Electrode Potential, Nernst Equation - 7 questions (78%)
- Conductance and Conductivity - 2 questions (22%)
6.Is Electrochemistry's weightage in IAT (IISER) going up or down?
Across all 8 papers analysed, Electrochemistry has averaged about 1.1 questions per paper. In the last three years (2023–2026), that average has fallen, at about 0.3 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.