Chemistry · JEE

Important Questions: Redox Reactions and Electrochemistry for JEE

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The most important Redox Reactions and Electrochemistry questions for JEE cover conceptual traps, standard results, and numerical patterns from Electronic concepts of oxidation and reduction, redox reactions, oxidation number, rules for assigning oxidation number and balancing of redox reactions, Electrolytic and metallic conduction, conductance in electrolytic solutions, molar conductivities and their variation with concentration, Kohlrausch's law and its applications, Electrochemical cells: Electrolytic and Galvanic cells, different types of electrodes, electrode potentials including standard electrode potential, half-cell and cell reactions, Emf of a Galvanic cell and its measurement, Nernst equation and its applications, relationship between cell potential and Gibbs' energy change, and more. Goodmarks provides 180+ high-yield MCQs with full solutions.

Focus on what matters most. These important Redox Reactions and Electrochemistry questions cover high-weightage concepts from Electronic concepts of oxidation and reduction, redox reactions, oxidation number, rules for assigning oxidation number and balancing of redox reactions, Electrolytic and metallic conduction, conductance in electrolytic solutions, molar conductivities and their variation with concentration, Kohlrausch's law and its applications, Electrochemical cells: Electrolytic and Galvanic cells, different types of electrodes, electrode potentials including standard electrode potential, half-cell and cell reactions, Emf of a Galvanic cell and its measurement, Nernst equation and its applications, relationship between cell potential and Gibbs' energy change, and more — the topics JEE repeats every year.

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Subtopics in Redox Reactions and Electrochemistry

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Q1ChemistryUnit 7: Redox Reactions and Electrochemistry

\boldsymbol{H}_{2} \boldsymbol{O}_{2}

is:

Q2ChemistryUnit 7: Redox Reactions and Electrochemistry

Which of the following changes will cause the free energy of a cell reaction to decrease?

\boldsymbol{Z} \boldsymbol{n} \mid \boldsymbol{Z} \boldsymbol{n} \boldsymbol{S} \boldsymbol{O}_{4}(\boldsymbol{a} \boldsymbol{q})\left(\boldsymbol{x}_{1} \boldsymbol{M}\right) \| \boldsymbol{H} \boldsymbol{C l}(\boldsymbol{a} \boldsymbol{q})\left(\boldsymbol{x}_{2} \boldsymbol{N}\right.

This question has multiple correct options

Q3ChemistryUnit 7: Redox Reactions and Electrochemistry

An oxidation process involves:

Q4ChemistryUnit 7: Redox Reactions and Electrochemistry

Which of the following statement (s) differentiate between electrochemical cell and electrolytic cell? This question has multiple correct options

Q5ChemistryUnit 7: Redox Reactions and Electrochemistry

The reaction that takes place when

C l_{2}

gas is passed through conc. NaOH solution is :

Q6ChemistryUnit 7: Redox Reactions and Electrochemistry

Which of the following statements is correct for oxidation reaction?

Q7ChemistryUnit 7: Redox Reactions and Electrochemistry

The other name of comproportionation is:

Q8ChemistryUnit 7: Redox Reactions and Electrochemistry

The correct arrangement of following acids of phosphorus in the increasing order of oxidation state of phosphorous ¡S:

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Frequently asked questions

What makes a Redox Reactions and Electrochemistry question "important" for JEE?

Important questions test core concepts that appear frequently across JEE Main and Advanced papers — definitions, standard formulas, and classic problem types.

Which subtopics in Redox Reactions and Electrochemistry are high-weightage?

Key areas include Electronic concepts of oxidation and reduction, redox reactions, oxidation number, rules for assigning oxidation number and balancing of redox reactions, Electrolytic and metallic conduction, conductance in electrolytic solutions, molar conductivities and their variation with concentration, Kohlrausch's law and its applications, Electrochemical cells: Electrolytic and Galvanic cells, different types of electrodes, electrode potentials including standard electrode potential, half-cell and cell reactions, Emf of a Galvanic cell and its measurement, Nernst equation and its applications, relationship between cell potential and Gibbs' energy change, and more. Prioritise these before moving to edge cases.

How many important questions should I revise?

Revise 30–50 important MCQs per unit in the last month before JEE. Focus on questions you got wrong at least once.

Can I practise only important questions on Goodmarks?

Pro users can filter by unit and subtopic to target high-yield areas. Free users can attempt sample questions on this page.