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Saturday, 31 October

JEE Main · Chemistry · Electrochemistry

Standard Gibbs Energy and Standard Cell Potential

JEE Main asked Standard Gibbs Energy and Standard Cell Potential 2 times in 2 of the 108 shifts Lumi analysed, in 2021 and 2022. It belongs to Gibbs Free Energy, in Electrochemistry (Chemistry). The longest wait between two years asking it was 1 year.

Updated 2026-10-24

Times asked
2
in 2 shifts
Years
2 of 8
First asked
2021
last in 2022
Pattern
Occasional
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2021 and 2022. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.

00.050.10’170’200.03’210.03’220’230’240’250’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 1 in 24 shifts · 2022: 1 in 24 shifts · 2023: 0 in 12 shifts · 2024: 0 in 18 shifts · 2025: 0 in 8 shifts · 2026: 0 in 9 shifts.

Shift by shift

Each square is one analysed shift, in date order. Open a filled one for that paper.

  • 20260 of 9
  • 20250 of 8
  • 20240 of 18
  • 20230 of 12
  • 20221 of 24
  • 20211 of 24
  • 20200 of 12
  • 20170 of 1

Asked in that shift More than once Not asked

How JEE Main framed it

Numerical value is the usual form. Skill tested: calculation.

  • Free energy change from electrode potentials
  • Delta g from standard electrode potentials

Difficulty

Easy 0Medium 1Hard 1

2 of the 2 questions had a numerical answer.

Every question

All 2 questions

From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.

  1. 26 Jun 2022, Shift 2 · Q87Cu(s)+Sn2+\mathrm{Cu(s)} + \mathrm{Sn^{2+}} (0.001M) →Cu2+\rightarrow \mathrm{Cu^{2+}} (0.01M) + Sn(s)\mathrm{Sn(s)} The Gibbs free energy change for…MediumNumerical value
  2. 18 Mar 2021, Shift 1 · Q56For the reaction 2Fe3+(aq)+2I−(aq)→2Fe2+(aq)+I2(s)\mathrm{2Fe^{3+}(aq) + 2I^-(aq) \rightarrow 2Fe^{2+}(aq) + I_2(s)} the magnitude of the standard molar free energy…HardNumerical value

Shifts: 18 Mar 2021, Shift 1, 26 Jun 2022, Shift 2.

Same topic

Other ideas in Gibbs Free Energy

Gibbs Free Energy has 15 ideas JEE Main has asked; 5 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas