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Saturday, 31 October

JEE Main · Chemistry · Redox Reactions

Disproportionation Balancing

JEE Main asked Disproportionation Balancing 7 times in 7 of the 108 shifts Lumi analysed, in 2021, 2022 and 2024. It belongs to Redox Reactions (Chemistry). The longest wait between two years asking it was 2 years. In 2022 and 2024 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
7
in 7 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.

00.10.20’170’200.03’210.07’220’230.19’240’250’26

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: 4 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
  • 20244 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

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

  • Balance disproportionation reaction
  • Statement i/ii on disproportionation

Difficulty

Easy 3Medium 4Hard 0

Every question was multiple choice.

Every question

All 7 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 2 · Q65Given below are two statements : Statement I : S8\mathrm{S_8} solid undergoes disproportionation reaction under alkaline conditions to…MediumTwo statements
  2. 29 Jan 2024, Shift 1 · Q63Chlorine undergoes disproportionation in alkaline medium as shown below :…EasySingle correct
  3. 1 Feb 2024, Shift 1 · Q68Which of the following reactions are disproportionation reactions ? (A) Cu+→Cu2++Cu\mathrm{Cu^+ \rightarrow Cu^{2+} + Cu} (B)…MediumOther
  4. 6 Apr 2024, Shift 2 · Q64Match List - I with List - II. List - I (Reaction) (A) N2(g)+O2(g)→2NO(g)\mathrm{N_{2(g)}+O_{2(g)}\rightarrow 2NO_{(g)}} (B)…EasyMatch the list
  5. 26 Jun 2022, Shift 2 · Q68Which one of the following is an example of disproportionation reaction ?MediumSingle correct
  6. 26 Jul 2022, Shift 1 · Q68Which of the given reactions is not an example of disproportionation reaction ?EasySingle correct
  7. 31 Aug 2021, Shift 2 · Q38In which one of the following sets all species show disproportionation reaction ?MediumSingle correct

Shifts: 31 Aug 2021, Shift 2, 26 Jun 2022, Shift 2, 26 Jul 2022, Shift 1, 29 Jan 2024, Shift 1, 31 Jan 2024, Shift 2, 1 Feb 2024, Shift 1, 6 Apr 2024, 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