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JEE Main Redox Reactions and Titrations questions with solutions

Oxidation numbers, balancing redox equations and redox titrations. 9 questions from our 2016–2024 JEE Main pattern papers, from the Class 11 Chemistry syllabus. Each has the answer and a full solution.

Also practise: Redox Reactions and Titrations for JEE Advanced

JEE Main 2024

120 mL of 0.0200 M KMnO4 in acidic medium just oxidises a sample of FeC2O4 (taking its molar mass as 144 g mol^-1) completely to Fe^3+ and CO2. The…JEE Main 2024 · medium

JEE Main 2023

A 25.0 mL sample of a hydrogen peroxide solution requires 20.0 mL of 0.500 M KMnO4 for complete reaction in acidic medium. The strength of the…JEE Main 2023 · medium

JEE Main 2021

JEE Main 2020

25.0 mL of 0.10 M ferrous oxalate (FeC2O4) solution is titrated in acidic medium with 0.020 M KMnO4, which is reduced to Mn^2+. Volume of KMnO4…JEE Main 2020 · easy

JEE Main 2019

A 25 mL sample of an acidified Fe^2+ solution requires 20 mL of 0.020 M KMnO4 for complete oxidation. The volume of 0.010 M K2Cr2O7 (in acidic…JEE Main 2019 · medium

JEE Main 2018

JEE Main 2016

A 1.44 g sample of pure FeC2O4 (M=144) is titrated in acidic medium with 0.040 M KMnO4. In the reaction both Fe^2+ and C2O4^2- are oxidised…JEE Main 2016 · medium

Other Chemistry topics

Alcohols, Phenols, Ethers and Haloalkanes 16 Atomic Structure 12 Biomolecules and Polymers 14 Carbonyl Compounds, Carboxylic Acids and Amines 25 Chemical Bonding and Molecular Structure 14 Chemical Equilibrium 10 Chemical Kinetics 13 Chemical Thermodynamics 16 Coordination Compounds 18 Electrochemistry 18 General Organic Chemistry and Isomerism 13 Hydrocarbons 16 Ionic Equilibrium 11 Mole Concept and Stoichiometry 12 Periodic Properties 9 Qualitative and Practical Chemistry 8 Solutions, Solid State and Surface Chemistry 19 d- and f-Block Elements and Metallurgy 14 s-Block, p-Block Elements and Hydrogen 23