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Saturday, 31 October

JEE Main · Chemistry · Aldehydes, Ketones and Carboxylic Acids

Self-Aldol Condensation

JEE Main asked Self-Aldol Condensation 4 times in 4 of the 108 shifts Lumi analysed, in 2021, 2022 and 2026. It belongs to Aldol and Cannizzaro, in Aldehydes, Ketones and Carboxylic Acids (Chemistry). The longest wait between two years asking it was 4 years. In 2022 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
4
in 4 shifts
Years
3 of 8
First asked
2021
last in 2026
Pattern
Frequent
across the analysed shifts

Questions on this idea a shift, by year

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

00.10.20’170’200.03’210.07’220’230’240’250.11’26

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: 0 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
  • 20240 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

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

  • Predict product of reaction sequence
  • Aldol product under aqueous base

Difficulty

Easy 0Medium 4Hard 0

1 of the 4 questions had a numerical answer.

Every question

All 4 questions

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

  1. 6 Apr 2026, Shift 2 · Q64'xx' is the product which is obtained by the hydrolysis of prop-1-yne in the presence of mercuric sulphate under dilute acidic medium at…MediumSingle correct
  2. 29 Jun 2022, Shift 2 · Q90In the given reaction, [figure: six-membered ring with a carbonyl oxygen (O double bonded to a ring carbon); reagents over the arrow: (i)…MediumNumerical valueHas a figure
  3. 25 Jul 2022, Shift 2 · Q74What is the major product of the following reaction ? [figure: skeletal drawing of a carbon chain with a branch point (two bond stubs on a…MediumDiagram basedHas a figure
  4. 18 Mar 2021, Shift 2 · Q46[figure: reaction scheme] Consider the above reaction, the product ‘X’ and ‘Y’ respectively are :MediumDiagram basedHas a figure

Shifts: 18 Mar 2021, Shift 2, 29 Jun 2022, Shift 2, 25 Jul 2022, Shift 2, 6 Apr 2026, Shift 2.

Same topic

Other ideas in Aldol and Cannizzaro

Aldol and Cannizzaro has 9 ideas JEE Main has asked; 8 of them came up in more than one question.

Topic analysisChapter analysisStudy this chapterAll repeated ideas