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Saturday, 31 October

JEE Main · Chemistry · Some Basic Concepts of Chemistry

Mohr's Salt Redox Titrations

JEE Main asked Mohr's Salt Redox Titrations 3 times in 3 of the 108 shifts Lumi analysed, in 2021 and 2022. It belongs to Redox Reactions, in Some Basic Concepts of Chemistry (Chemistry). The longest wait between two years asking it was 1 year. In 2021 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
3
in 3 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.

00.050.10’170’200.07’210.03’220’230’240’250’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 2 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
  • 20212 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.

  • Molarity from redox titration
  • Kmno4 titration with mohr's salt

Difficulty

Easy 0Medium 3Hard 0

3 of the 3 questions had a numerical answer.

Every question

All 3 questions

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

  1. 28 Jun 2022, Shift 2 · Q900.01 M KMnO4\mathrm{KMnO_4} solution was added to 20.0 mL of 0.05 M Mohr’s salt solution through a burette. The initial reading of 50 mL…MediumNumerical value
  2. 25 Jul 2021, Shift 1 · Q51When 10 mL of an aqueous solution of Fe2+\mathrm{Fe^{2+}} ions was titrated in the presence of dil H2SO4\mathrm{H_2SO_4} using diphenylamine…MediumNumerical value
  3. 27 Aug 2021, Shift 1 · Q55When 10 mL of an aqueous solution of KMnO4\mathrm{KMnO_4} was titrated in acidic medium, equal volume of 0.1 M of an aqueous solution of…MediumNumerical value

Shifts: 25 Jul 2021, Shift 1, 27 Aug 2021, Shift 1, 28 Jun 2022, Shift 2.

Same topic

Other ideas in Redox Reactions

Redox Reactions has 16 ideas JEE Main has asked; 10 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas