Learn

Saturday, 31 October

JEE Main · Chemistry · The d- and f-Block Elements

Permanganate Reactions

JEE Main asked Permanganate Reactions 5 times in 5 of the 108 shifts Lumi analysed, in 2021, 2022 and 2024. It belongs to d-Block Elements, in The d- and f-Block Elements (Chemistry). The longest wait between two years asking it was 2 years. In 2021 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
5
in 5 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.

00.050.10’170’200.10’210.03’220’230.05’240’250’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 3 in 24 shifts · 2022: 1 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
  • 20221 of 24
  • 20213 of 24
  • 20200 of 12
  • 20170 of 1

Asked in that shift More than once Not asked

How JEE Main framed it

Single correct is the usual form. Skill tested: conceptual.

  • Manganate disproportionation then sum of spin-only moments
  • Statement i/ii on oxidising ability and manganate

Difficulty

Easy 0Medium 4Hard 1

1 of the 5 questions had a numerical answer.

Every question

All 5 questions

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

  1. 4 Apr 2024, Shift 1 · Q86Consider the following reaction MnO2+KOH+O2→A+H2O\mathrm{MnO_2 + KOH + O_2 \rightarrow A + H_2O}. Product 'A' in neutral or acidic medium…MediumNumerical value
  2. 27 Jul 2022, Shift 1 · Q71Given below are two statements. Statement I: Iron (III) catalyst, acidified K2Cr2O7\mathrm{K_2Cr_2O_7} and neutral KMnO4\mathrm{KMnO_4} have the…HardTwo statements
  3. 17 Mar 2021, Shift 1 · Q39Given below are two statements : Statement I : Potassium permanganate on heating at 573 K forms potassium manganate. Statement II : Both…MediumTwo statements
  4. 27 Aug 2021, Shift 2 · Q37Potassium permanganate on heating at 513 K gives a product which is :MediumSingle correct
  5. 3 Aug 2021, Shift 1 · Q39The correct statement for permanganate ion isMediumSingle correct

Shifts: 17 Mar 2021, Shift 1, 3 Aug 2021, Shift 1, 27 Aug 2021, Shift 2, 27 Jul 2022, Shift 1, 4 Apr 2024, Shift 1.

Same topic

Other ideas in d-Block Elements

d-Block Elements has 31 ideas JEE Main has asked; 21 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas