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Saturday, 31 October

JEE Main · Chemistry · Equilibrium

Common Ion Effect

JEE Main asked Common Ion Effect 6 times in 6 of the 108 shifts Lumi analysed, in 2021, 2022, 2023 and 2024. It belongs to Solubility Product, in Equilibrium (Chemistry). The longest wait between two years asking it was 1 year. In 2021 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
6
in 6 shifts
Years
4 of 8
First asked
2021
last in 2024
Pattern
Comes in cycles
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2021, 2022, 2023 and 2024. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.

00.050.10’170’200.10’210.03’220.07’230.05’240’250’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 3 in 24 shifts · 2022: 1 in 24 shifts · 2023: 1 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
  • 20231 of 12
  • 20221 of 24
  • 20213 of 24
  • 20200 of 12
  • 20170 of 1

Asked in that shift More than once Not asked

How JEE Main framed it

Numerical value is the usual form. Skill tested: calculation.

  • Solubility with common ion
  • Solubility in common ion solution

Difficulty

Easy 2Medium 4Hard 0

4 of the 6 questions had a numerical answer.

Every question

All 6 questions

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

  1. 5 Apr 2024, Shift 2 · Q63Given below are two statements : Statement I : On passing HCl(g)\mathrm{HCl_{(g)}} through a saturated solution of BaCl2\mathrm{BaCl_2}, at room…MediumTwo statements
  2. 8 Apr 2023, Shift 2 · Q85The solubility product of BaSO4\mathrm{BaSO_4} is 1×10−101\times10^{-10} at 298K. The solubility of BaSO4\mathrm{BaSO_4} in 0.1 M K2SO4\mathrm{K_2SO_4}…EasyNumerical value
  3. 29 Jun 2022, Shift 1 · Q64The solubility of AgCl will be maximum in which of the following ?EasySingle correct
  4. 18 Mar 2021, Shift 2 · Q55The solubility of CdSO4\mathrm{CdSO_4} in water is 8.0×10−48.0 \times 10^{-4} mol L−1^{-1}. Its solubility in 0.01 M H2SO4\mathrm{H_2SO_4} solution is…MediumNumerical value
  5. 24 Feb 2021, Shift 2 · Q55The solubility product of PbI2\mathrm{PbI_2} is 8.0×10−98.0 \times 10^{-9}. The solubility of lead iodide in 0.1 molar solution of lead nitrate is…MediumNumerical value
  6. 4 Aug 2021, Shift 1 · Q55If KSP_{SP} of CaSO4\mathrm{CaSO_4} is 9.0×10−69.0\times10^{-6} at 298K, the molar solubility of CaSO4\mathrm{CaSO_4} in 0.2M Ca(NO3)2\mathrm{Ca(NO_3)_2} is…MediumNumerical value

Shifts: 24 Feb 2021, Shift 2, 18 Mar 2021, Shift 2, 4 Aug 2021, Shift 1, 29 Jun 2022, Shift 1, 8 Apr 2023, Shift 2, 5 Apr 2024, Shift 2.

Same topic

Other ideas in Solubility Product

Solubility Product has 7 ideas JEE Main has asked; 5 of them came up in more than one question.

Topic analysisChapter analysisStudy this chapterAll repeated ideas