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Answer first
Redox Reactions and Electrochemistry PYQs (previous year questions) for JEE Main: Redox Reactions and Electrochemistry (Chemistry) had 12 questions across the 11 official JEE Main papers we tagged (2016–2026), and appeared in 10 of them. Asked in 3 of 3 years. The concepts asked in the most papers: Nernst Equation, Redox Titration, Electrode Potential.
Year-wise question count
Asked in 3 of 3 years.
| Year | Papers | Questions | Per paper |
|---|---|---|---|
| JEE Main 2026 | 9 | 10 | 1.1 |
| JEE Main 2017 | 1 | 1 | 1 |
| JEE Main 2016 | 1 | 1 | 1 |
Most-asked concepts
Sorted by the number of papers a concept appeared in.
| Concept | Questions | Papers | Years |
|---|---|---|---|
| Nernst Equation | 3 | 3 | 2026 |
| Electrode Potential | 2 | 2 | 2026, 2017 |
| Redox Titration | 2 | 2 | 2026 |
| Conductance | 1 | 1 | 2026 |
| Corrosion | 1 | 1 | 2016 |
| Electrochemical Cell | 1 | 1 | 2026 |
| Fuel Cell | 1 | 1 | 2026 |
| Molar Conductivity | 1 | 1 | 2026 |
How to practise Redox Reactions and Electrochemistry PYQs
- Start with the concepts at the top of the table. They have come back the most.
- Solve one year’s Redox Reactions and Electrochemistry questions from the official PDF against the clock, then check the answer listed below.
- Log every miss as a concept gap, a calculation slip or a misread. Each needs a different fix.
- Once a concept is clean in two papers, move to the next. Then sit a full paper from the year pages.
Questions by year
Each line gives the question number and paper, type, concept, our one-line summary and the official answer, with a link to the official PDF.
JEE Main2026
- Q.57 (2 April, shift 1) · MCQ · Electrochemical Cell: Correct statement for a cell from Fe(OH)2/Fe and AgBr/Ag half cells (official answer: option 1) PDF
- Q.73 (2 April, shift 2) · Numerical · Fuel Cell: Volume change from isothermal compression work supplied by a methanol fuel cell (official answer: 560) PDF
- Q.56 (4 April, shift 1) · MCQ · Redox Titration: Moles of KMnO4 to oxidise a mixture of iron oxalates and sulphates (official answer: option 2) PDF
- Q.73 (4 April, shift 2) · Numerical · Nernst Equation: Find oxidation state x of M from cell EMF and reaction quotient (official answer: 2) PDF
- Q.57 (5 April, shift 2) · MCQ · Nernst Equation: Ag⁺ concentration from EMF of a Zn-Ag cell (official answer: option 2) PDF
- Q.74 (5 April, shift 2) · Numerical · Conductance: Concentration x from molar conductivity and conductance (official answer: 15) PDF
- Q.58 (6 April, shift 1) · MCQ · Molar Conductivity: Ksp of BaSO4 from conductivity and limiting molar conductivities (official answer: option 1) PDF
- Q.57 (6 April, shift 2) · MCQ · Nernst Equation: Identify incorrect statement about a general redox cell (official answer: option 4) PDF
- Q.73 (6 April, shift 2) · Numerical · Redox Titration: Molarity of thiosulphate from iodine liberated by permanganate (official answer: 1) PDF
- Q.56 (8 April, shift 2) · MCQ · Electrode Potential: E for Fe3+/Fe2+ from Fe2+/Fe and Fe3+/Fe potentials (official answer: option 2) PDF
JEE Main2017
- Q.36 · MCQ · Electrode Potential: Strongest reducing agent from standard potentials PDF
JEE Main2016
- Q.38 · MCQ · Corrosion: Metal used for galvanization coating PDF
Redox Reactions and Electrochemistry in other exams
The same chapter in other official papers we tagged: JEE Advanced (26 questions), NEET (3 questions).
Other Chemistry chapters
- Some Basic Concepts in Chemistry PYQs
- Atomic Structure PYQs
- Chemical Bonding and Molecular Structure PYQs
- Chemical Thermodynamics PYQs
- Solutions PYQs
- Equilibrium PYQs
- Chemical Kinetics PYQs
- Classification of Elements and Periodicity PYQs
- p-Block Elements PYQs
- d- and f-Block Elements PYQs
- Coordination Compounds PYQs
- Purification and Characterisation of Organic Compounds PYQs
- Some Basic Principles of Organic Chemistry PYQs
- Hydrocarbons PYQs
- Organic Compounds Containing Halogens PYQs
- Organic Compounds Containing Oxygen PYQs
- Organic Compounds Containing Nitrogen PYQs
- Biomolecules PYQs
- Principles Related to Practical Chemistry PYQs
FAQ
How many Redox Reactions and Electrochemistry questions come in JEE Main?
In the official papers we tagged: 10 in 2026 (9 papers), 1 in 2017 (1 paper) and 1 in 2016 (1 paper). That is 12 questions in all, about 4% of Chemistry.
Which Redox Reactions and Electrochemistry topics repeat in JEE Main?
Asked in the most papers: Nernst Equation, Redox Titration, Electrode Potential. The concept table lists every one with its count.
Are these official JEE Main questions?
Yes. Every question is from an official JEE Main paper hosted on our year pages. The one-line summaries are ours; open the PDF linked beside each question for the full text.