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Saturday, 31 October

JEE Main · Chemistry · Aldehydes, Ketones and Carboxylic Acids

Fischer Esterification

JEE Main asked Fischer Esterification 3 times in 3 of the 108 shifts Lumi analysed, in 2020, 2022 and 2025. It belongs to Carboxylic Acids and Derivatives, in Aldehydes, Ketones and Carboxylic Acids (Chemistry). The longest wait between two years asking it was 3 years.

Updated 2026-10-24

Times asked
3
in 3 shifts
Years
3 of 8
First asked
2020
last in 2025
Pattern
Frequent
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2020, 2022 and 2025. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.

00.10.20’170.08’200’210.03’220’230’240.13’250’26

Raw count: 2017: 0 in 1 shift · 2020: 1 in 12 shifts · 2021: 0 in 24 shifts · 2022: 1 in 24 shifts · 2023: 0 in 12 shifts · 2024: 0 in 18 shifts · 2025: 1 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
  • 20251 of 8
  • 20240 of 18
  • 20230 of 12
  • 20221 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

Single correct is the usual form. Skill tested: multi-step.

  • Identify compounds in reaction sequence
  • Statement i/ii on esterification

Difficulty

Easy 0Medium 3Hard 0

Every question was multiple choice.

Every question

All 3 questions

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

  1. 8 Apr 2025, Shift 2 · Q69A→(ii) H3O+(i) NaOHB→(ii) H2SO4,Δ(i) EtOHCA \xrightarrow[\text{(ii) H}_3\text{O}^+]{\text{(i) NaOH}} B \xrightarrow[\text{(ii) H}_2\text{SO}_4, \Delta]{\text{(i) EtOH}} C 'A'…MediumSingle correctHas a figure
  2. 29 Jun 2022, Shift 1 · Q75Given below are two statements : Statement I : The esterification of carboxylic acid with an alcohol is a nucleophilic acyl substitution.…MediumTwo statements
  3. 3 Sep 2020, Shift 1 · Q43An organic compound [A], molecular formula C10H20O2\mathrm{C_{10}H_{20}O_2} was hydrolyzed with dilute sulphuric acid to give a carboxylic acid…MediumSingle correctHas a figure

Shifts: 3 Sep 2020, Shift 1, 29 Jun 2022, Shift 1, 8 Apr 2025, Shift 2.

Same topic

Other ideas in Carboxylic Acids and Derivatives

Carboxylic Acids and Derivatives has 15 ideas JEE Main has asked; 11 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas