JEE Main Chemistry · Electrochemistry

Nernst Equation in JEE Main

Name: Nernst Equation: JEE Main previous year questions
Creator: Lumi

Nernst Equation (Chemistry, Electrochemistry) came 23 times in 23 of the 42 JEE Main shifts Lumi analysed, across 9 distinct ideas. 11 of them came in 2024–26; it was last asked in 2026.

Questions: 23; in 23 shifts
Ideas asked: 9; 6 asked more than once
Numerical answer: 14; 61% of its questions
Pattern: Asked most years; last asked 2026

Questions each year

In the shifts Lumi analysed for each year.

Difficulty and format

Easy 4Medium 14Hard 5

Format

Numerical value14 Q
Single correct8 Q
Other1 Q

Ideas inside the topic

9 ideas

Full Cell Nernst Equation6 Q
Standard Cell Potential6 Q
Concentration Cells2 Q
Gibbs Energy and EMF2 Q
Latimer Diagrams and E02 Q
pH Dependence of Electrode Potential2 Q
Nernst Equation and Solubility Product (Ksp)1 Q
Quinhydrone Electrode for pH1 Q
Maximum Non-Expansion Work1 Q

Where it sits

Part of Electrochemistry, which had 46 questions in all. Nernst Equation accounts for 50% of them. In Lumi's JEE taxonomy it belongs to Physical Chemistry.

Every question

All 23 Nernst Equation questions

Newest first, each with its options and official answer.

2 Apr 2026, Shift 1 · Q57An electrochemical cell is constructed using half cells in the direction of spontaneous change…MediumSingle correct
4 Apr 2026, Shift 2 · Q73An electrochemical cell, consist of the following two redox couples, $\mathrm{M^{x+}(aq)/M(s)}$ $[E^\ominus_{red}=+0.15\ \mathrm{V}]$ and…HardNumerical value
5 Apr 2026, Shift 2 · Q57One half cell in a voltaic cell is constructed by dipping silver rod in $\mathrm{AgNO_3}$ solution of unknown concentration, other half…MediumSingle correct
6 Apr 2026, Shift 2 · Q57For a general redox reaction Anode : $\mathrm{Red_1\rightarrow Ox_1^{n_1+}+n_1e^-}$ Cathode :…MediumOtherHas a figure
8 Apr 2026, Shift 2 · Q56Given at 298 K : $E^{\ominus}_{\mathrm{Fe^{2+}/Fe}} = X$ Volt $E^{\ominus}_{\mathrm{Fe^{3+}/Fe}} = Y$ Volt The…MediumSingle correct
2 Apr 2025, Shift 1 · Q71Consider the following electrochemical cell at standard condition. $\mathrm{Au(s)|QH_2,Q|NH_4X(0.01\ M)||Ag^+(1\ M)|Ag(s)}$ …HardNumerical valueHas a figure
3 Apr 2025, Shift 2 · Q56The standard cell potential ( $\mathrm{E^{\ominus}_{cell}}$ ) of a fuel cell based on the oxidation of methanol in air that has been used to…MediumSingle correct
7 Apr 2025, Shift 1 · Q711 Faraday electricity was passed through $\mathrm{Cu^{2+}}$ (1.5 M, 1 L) /Cu and 0.1 Faraday was passed through $\mathrm{Ag^+}$ (0.2 M, 1…HardNumerical valueHas a figure
8 Apr 2025, Shift 2 · Q75Consider the following half cell reaction $\mathrm{Cr_2O_7^{2-}(aq) + 6e^- + 14H^+(aq) \longrightarrow 2Cr^{3+}(aq) + 7H_2O(l)}$ The…MediumNumerical value
9 Apr 2024, Shift 1 · Q85The standard reduction potentials at 298 K for the following half cells are given below :…MediumNumerical value
30 Jan 2024, Shift 2 · Q65Reduction potential of ions are given below: $\mathrm{ClO_4^-}$ $E^\circ = 1.19\ V$ ; $\mathrm{IO_4^-}$ $E^\circ = 1.65\ V$ ;…EasySingle correct
8 Apr 2023, Shift 2 · Q86The number of incorrect statements from the following is ____________ A. The electrical work that a reaction can perform at constant…MediumNumerical value
11 Apr 2023, Shift 1 · Q86In an electrochemical reaction of lead, at standard temperature, if $\mathrm{E^{\circ}(Pb^{2+}/Pb)} = m$ Volt and…MediumNumerical value
13 Apr 2023, Shift 2 · Q86At 298 K, the standard reduction potential for $\mathrm{Cu^{2+}/Cu}$ electrode is 0.34 V. Given :…HardNumerical value
25 Jul 2022, Shift 1 · Q84The cell potential for $\mathrm{Zn|Zn^{2+}(aq)\|Sn^{x+}|\,Sn}$ is $0.801$ V at 298 K. The reaction quotient for the above reaction is…MediumNumerical value
28 Jul 2022, Shift 1 · Q70Which of the following has least tendency to liberate $\mathrm{H_2}$ from mineral acids ?EasySingle correct
24 Jun 2022, Shift 1 · Q84The cell potential for the following cell $\mathrm{Pt\,|H_2(g)|H^+(aq)\|\ Cu^{2+}(0.01\ M)|Cu(s)}$ is 0.576 V at 298 K. The pH of the…MediumNumerical value
3 Aug 2021, Shift 2 · Q56The potential of a cell containing two hydrogen electrodes, one in contact with $10^{-8}$ M $\mathrm{H^+}$ concentration and the other in…MediumNumerical value
25 Jul 2021, Shift 1 · Q58Consider the cell at 25 $^\circ$ C $\mathrm{Zn|Zn^{2+}(aq),(1\ M)\,||\,Fe^{3+}(aq),Fe^{2+}(aq)|Pt(s)}$ The fraction of total iron present as…HardNumerical value
8 Jan 2020, Shift 1 · Q48What would be the electrode potential for the given half cell reaction at pH=5 ? ______.…MediumNumerical value
2 Sep 2020, Shift 1 · Q47The Gibbs energy change (in J) for the given reaction at $[\mathrm{Cu^{2+}}]=[\mathrm{Sn^{2+}}]=1$ M and 298 K is :…EasyNumerical value
6 Sep 2020, Shift 2 · Q45For the given cell ; $\mathrm{Cu(s)|Cu^{2+}(C_1\ M)||Cu^{2+}(C_2\ M)|Cu(s)}$ change in Gibbs energy ( $\Delta G$ ) is negative, if :MediumSingle correct
2 Apr 2017 (offline) · Q36Given $E^\circ_{\mathrm{Cl_2/Cl^-}}=1.36$ V, $E^\circ_{\mathrm{Cr^{3+}/Cr}}=-0.74$ V $E^\circ_{\mathrm{Cr_2O_7^{2-}/Cr^{3+}}}=1.33$ V,…EasySingle correct