Learn

Friday, 9 October

JEE Main Chemistry · Class 11

Redox Reactions: JEE Main previous year questions

Redox Reactions had 16 questions in the 42 JEE Main shifts Lumi analysed, about 0.3 a shift, asked in 13 of 42 shifts. It ranks 21 of 30 Chemistry chapters by questions; 0% of its questions were hard.

Questions
16
in 13 of 42 shifts
A shift, on average
0.3
of 25 Chemistry questions
Since 2024
+0.2
0.2 a shift in 2017–23, 0.4 in 2024–26
Numerical answer
6
38% of its questions

Year by year

How often it came

Questions in the analysed shifts of each year. Years differ in how many shifts Lumi analysed, so read the bars with the shift count.

Questions each year
0480’170’200’211’224’238’240’253’26

2017: 1 shifts · 2020: 4 shifts · 2021: 4 shifts · 2022: 4 shifts · 2023: 4 shifts · 2024: 8 shifts · 2025: 8 shifts · 2026: 9 shifts

Difficulty by year
  • 2017
  • 2020
  • 2021
  • 20221
  • 20234
  • 20248
  • 2025
  • 20263
  • Easy
  • Medium
  • Hard

Inside the chapter

Topics and the ideas that repeat

2 topics and 9 distinct ideas; 4 ideas were asked more than once. Most questions are numerical value and application.

Topics, by questions

1 questions had no close topic in our taxonomy and are counted for the chapter only.

Ideas asked most
4 repeat

Study it on Lumi

Redox Reactions: the interactive lesson

Every question

All 16 Redox Reactions questions

Newest first. Each opens with its options and the official answer.

2026 3 questions

  1. 2 Apr 2026, Shift 1 · Q61Which of the following sets includes all the species that will change the orange colour of K2Cr2O7\mathrm{K_2Cr_2O_7} in acidic medium ?MediumSingle correct
  2. 4 Apr 2026, Shift 1 · Q56In order to oxidise a mixture of 11 mole each of FeC2O4\mathrm{FeC_2O_4}, Fe2(C2O4)3\mathrm{Fe_2(C_2O_4)_3}, FeSO4\mathrm{FeSO_4} and…MediumSingle correct
  3. 6 Apr 2026, Shift 2 · Q73500 mL of 0.2 M MnO4−\mathrm{MnO_4^-} solution in basic medium when mixed with 500 mL of 1.5 M KI solution, oxidises iodide ions to liberate…MediumNumerical value

2024 8 questions

  1. 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
  2. 8 Apr 2024, Shift 1 · Q64Thiosulphate reacts differently with iodine and bromine in the reactions given below:…MediumSingle correct
  3. 9 Apr 2024, Shift 1 · Q65Given below are two statements : Statement (I) : The oxidation state of an element in a particular compound is the charge acquired by its…MediumTwo statements
  4. 29 Jan 2024, Shift 1 · Q63Chlorine undergoes disproportionation in alkaline medium as shown below :…EasySingle correct
  5. 29 Jan 2024, Shift 1 · Q79In chromyl chloride test for confirmation of Cl−\mathrm{Cl^-} ion, a yellow solution is obtained. Acidification of the solution and…MediumSingle correct
  6. 30 Jan 2024, Shift 2 · Q84Total number of species from the following which can undergo disproportionation reaction is ________.…MediumNumerical value
  7. 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
  8. 31 Jan 2024, Shift 2 · Q86Number of moles of H+\mathrm{H^+} ions required by 1 mole of MnO4−\mathrm{MnO_4^-} to oxidise oxalate ion to CO2\mathrm{CO_2} is ________.MediumNumerical value

2023 4 questions

  1. 6 Apr 2023, Shift 1 · Q65Which of the following options are correct for the reaction…MediumOther
  2. 6 Apr 2023, Shift 1 · Q90In ammonium – phosphomolybdate, the oxidation state of Mo is + ________MediumNumerical value
  3. 8 Apr 2023, Shift 2 · Q80Given below are two statements: Statement I : In redox titration, the indicators used are sensitive to change in pH of the solution.…EasyTwo statements
  4. 13 Apr 2023, Shift 2 · Q88See the following chemical reaction:…EasyNumerical value

2022 1 questions

  1. 24 Jun 2022, Shift 1 · Q86The difference in oxidation state of chromium in chromate and dichromate salts is ______.EasyNumerical value

Pattern: Frequent.