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Saturday, 31 October

JEE Main · Chemistry · Aldehydes, Ketones and Carboxylic Acids

Acidity of Active Methylene Compounds

JEE Main asked Acidity of Active Methylene Compounds 2 times in 2 of the 108 shifts Lumi analysed, in 2020 and 2024. It belongs to Organic Acidity and Basicity, in Aldehydes, Ketones and Carboxylic Acids (Chemistry). The longest wait between two years asking it was 4 years.

Updated 2026-10-24

Times asked
2
in 2 shifts
Years
2 of 8
First asked
2020
last in 2024
Pattern
Occasional
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2020 and 2024. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.

00.050.10’170.08’200’210’220’230.05’240’250’26

Raw count: 2017: 0 in 1 shift · 2020: 1 in 12 shifts · 2021: 0 in 24 shifts · 2022: 0 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
  • 20220 of 24
  • 20210 of 24
  • 20201 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: conceptual.

  • Identify compound with most acidic hydrogen
  • Most acidic hydrogen among given compounds

Difficulty

Easy 1Medium 1Hard 0

Every question was multiple choice.

Every question

All 2 questions

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

  1. 27 Jan 2024, Shift 1 · Q72Which of the following has highly acidic hydrogen ?EasyDiagram basedHas a figure
  2. 3 Sep 2020, Shift 1 · Q39Which one of the following compounds possesses the most acidic hydrogen ?MediumSingle correctHas a figure

Shifts: 3 Sep 2020, Shift 1, 27 Jan 2024, Shift 1.

Same topic

Other ideas in Organic Acidity and Basicity

Organic Acidity and Basicity has 11 ideas JEE Main has asked; 6 of them came up in more than one question.

Topic analysisChapter analysisStudy this chapterAll repeated ideas