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Saturday, 31 October

JEE Main · Chemistry · Electrochemistry

Charge-Mole Relationship

JEE Main asked Charge-Mole Relationship 4 times in 4 of the 108 shifts Lumi analysed, in 2021, 2022 and 2024. It belongs to Faraday's Laws of Electrolysis, in Electrochemistry (Chemistry). The longest wait between two years asking it was 2 years. In 2022 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
4
in 4 shifts
Years
3 of 8
First asked
2021
last in 2024
Pattern
Comes in cycles
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2021, 2022 and 2024. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.

00.050.10’170’200.03’210.07’220’230.05’240’250’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 1 in 24 shifts · 2022: 2 in 24 shifts · 2023: 0 in 12 shifts · 2024: 1 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
  • 20241 of 18
  • 20230 of 12
  • 20222 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.

  • Moles liberated per faraday
  • Charge to deposit one mole of metal from oxide

Difficulty

Easy 3Medium 1Hard 0

4 of the 4 questions had a numerical answer.

Every question

All 4 questions

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

  1. 31 Jan 2024, Shift 1 · Q85One Faraday of electricity liberates x×10−1x\times10^{-1} gram atom of copper from copper sulphate. xx is _________.EasyNumerical value
  2. 28 Jun 2022, Shift 1 · Q87The quantity of electricity in Faraday needed to reduce 1 mol of Cr2O72−\mathrm{Cr_2O_7^{2-}} to Cr3+\mathrm{Cr^{3+}} is ________EasyNumerical value
  3. 26 Jul 2022, Shift 1 · Q87The amount of charge in F (Faraday) required to obtain one mole of iron from Fe3O4\mathrm{Fe_3O_4} is ____________. (Nearest Integer)MediumNumerical value
  4. 26 Feb 2021, Shift 1 · Q56Consider the following reaction MnO4−+8H++5e−→Mn+2+4H2O\mathrm{MnO_4^- + 8H^+ + 5e^- \rightarrow Mn^{+2} + 4H_2O}, E∘=1.51\mathrm{E^\circ} = 1.51 V. The quantity of…EasyNumerical value

Shifts: 26 Feb 2021, Shift 1, 28 Jun 2022, Shift 1, 26 Jul 2022, Shift 1, 31 Jan 2024, Shift 1.

Same topic

Other ideas in Faraday's Laws of Electrolysis

Faraday's Laws of Electrolysis has 9 ideas JEE Main has asked; 4 of them came up in more than one question.

Topic analysisChapter analysisStudy this chapterAll repeated ideas