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Saturday, 31 October

JEE Main · Chemistry · Aldehydes, Ketones and Carboxylic Acids

Side-chain Oxidation

JEE Main asked Side-chain Oxidation 6 times in 6 of the 108 shifts Lumi analysed, in 2021, 2022, 2023, 2024 and 2026. It belongs to Aromatic Hydrocarbons, in Aldehydes, Ketones and Carboxylic Acids (Chemistry). The longest wait between two years asking it was 2 years. In 2024 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
6
in 6 shifts
Years
5 of 8
First asked
2021
last in 2026
Pattern
Asked most years
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2021, 2022, 2023, 2024 and 2026. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.

00.10.20’170’200.03’210.03’220.07’230.09’240’250.11’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 1 in 24 shifts · 2022: 1 in 24 shifts · 2023: 1 in 12 shifts · 2024: 2 in 18 shifts · 2025: 0 in 8 shifts · 2026: 1 in 9 shifts.

Shift by shift

Each square is one analysed shift, in date order. Open a filled one for that paper.

  • 20261 of 9
  • 20250 of 8
  • 20242 of 18
  • 20231 of 12
  • 20221 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

Diagram based is the usual form. Skill tested: application.

  • Mass of product from sequence
  • Reagent identification for toluene to benzaldehyde

Difficulty

Easy 1Medium 5Hard 0

2 of the 6 questions had a numerical answer.

Every question

All 6 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 2026, Shift 1 · Q72Consider the following sequence of reactions to give the major product (X) benzene…MediumNumerical valueHas a figure
  2. 30 Jan 2024, Shift 1 · Q75In the given reactions, identify the reagent A and reagent B. [Scheme: toluene reacts via two routes to give benzaldehyde. Route 1: "A" +…MediumOtherHas a figure
  3. 5 Apr 2024, Shift 2 · Q89The product (C) in the following sequence of reactions has ________ π\pi bonds. n-propylbenzene (benzene ring bearing a three-carbon…MediumNumerical valueHas a figure
  4. 10 Apr 2023, Shift 1 · Q74The major product ‘P’ formed in the given reaction is [structure: naphthalene ring bearing CH2CH3\mathrm{CH_2CH_3} at one position of one…MediumDiagram basedHas a figure
  5. 26 Jun 2022, Shift 2 · Q72Oxidation of toluene to benzaldehyde can be easily carried out with which of the following reagents?MediumSingle correct
  6. 4 Aug 2021, Shift 1 · Q45Identify P in the given chemical reaction i) KMnO4\mathrm{KMnO_4}, KOH, heat ii) H3O+\mathrm{H_3O^+}EasyDiagram basedHas a figure

Shifts: 4 Aug 2021, Shift 1, 26 Jun 2022, Shift 2, 10 Apr 2023, Shift 1, 30 Jan 2024, Shift 1, 5 Apr 2024, Shift 2, 4 Apr 2026, Shift 1.

Same topic

Other ideas in Aromatic Hydrocarbons

Aromatic Hydrocarbons has 21 ideas JEE Main has asked; 14 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas