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Saturday, 31 October

JEE Main · Chemistry · Equilibrium

Kc Expression

JEE Main asked Kc Expression 2 times in 2 of the 108 shifts Lumi analysed, in 2020 and 2024. It belongs to Chemical Equilibrium, in Equilibrium (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

Single correct is the usual form. Skill tested: data or graph.

  • Write kc expression for reaction
  • Equilibrium constant from particle diagram

Difficulty

Easy 2Medium 0Hard 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. 31 Jan 2024, Shift 1 · Q63For the given reaction, choose the correct expression of KC\mathrm{K_C} from the following :-…EasySingle correct
  2. 9 Jan 2020, Shift 2 · Q30In the figure shown below reactant A (represented by square) is in equilibrium with product B (represented by circle). The equilibrium…EasySingle correctHas a figure

Shifts: 9 Jan 2020, Shift 2, 31 Jan 2024, Shift 1.

Same topic

Other ideas in Chemical Equilibrium

Chemical Equilibrium has 17 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