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Saturday, 31 October

JEE Main · Chemistry · Organic Chemistry: Some Basic Principles and Techniques

Relative Stability

JEE Main asked Relative Stability 4 times in 4 of the 108 shifts Lumi analysed, in 2022 and 2024. It belongs to Resonance and Hyperconjugation, in Organic Chemistry: Some Basic Principles and Techniques (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
4
in 4 shifts
Years
2 of 8
First asked
2022
last in 2024
Pattern
Occasional
across the analysed shifts

Questions on this idea a shift, by year

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

00.10.20’170’200’210.03’220’230.14’240’250’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 0 in 24 shifts · 2022: 1 in 24 shifts · 2023: 0 in 12 shifts · 2024: 3 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
  • 20243 of 18
  • 20230 of 12
  • 20221 of 24
  • 20210 of 24
  • 20200 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: conceptual.

  • Definition recall
  • Stability order of resonance structures

Difficulty

Easy 1Medium 3Hard 0

Every question was multiple choice.

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. 29 Jan 2024, Shift 1 · Q73The difference in energy between the actual structure and the lowest energy resonance structure for the given compound isEasySingle correct
  2. 9 Apr 2024, Shift 2 · Q73The correct stability order of the following resonance structures of CH3−CH=CH−CHO\mathrm{CH_3-CH=CH-CHO} is I:…MediumSingle correctHas a figure
  3. 9 Apr 2024, Shift 1 · Q71Relative stability of the contributing structures is : (I) CH2=CH−C∥O¨:−H\mathrm{CH_2=CH-\overset{\ddot{O}:}{\overset{\|}{C}}-H} ⟷\longleftrightarrow…MediumSingle correctHas a figure
  4. 29 Jun 2022, Shift 2 · Q73Which of the following carbocations is most stable?MediumDiagram basedHas a figure

Shifts: 29 Jun 2022, Shift 2, 29 Jan 2024, Shift 1, 9 Apr 2024, Shift 2, 9 Apr 2024, Shift 1.

Same topic

Other ideas in Resonance and Hyperconjugation

Resonance and Hyperconjugation has 7 ideas JEE Main has asked; 5 of them came up in more than one question.

Topic analysisChapter analysisStudy this chapterAll repeated ideas