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Saturday, 31 October

JEE Main · Chemistry · Equilibrium

Precipitation Condition

JEE Main asked Precipitation Condition 5 times in 5 of the 108 shifts Lumi analysed, in 2020, 2023, 2024 and 2025. It belongs to Solubility Product, in Equilibrium (Chemistry). The longest wait between two years asking it was 3 years. In 2023 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
5
in 5 shifts
Years
4 of 8
First asked
2020
last in 2025
Pattern
Comes in cycles
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2020, 2023, 2024 and 2025. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.

00.10.20’170.08’200’210’220.14’230.05’240.13’250’26

Raw count: 2017: 0 in 1 shift · 2020: 1 in 12 shifts · 2021: 0 in 24 shifts · 2022: 0 in 24 shifts · 2023: 2 in 12 shifts · 2024: 1 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
  • 20241 of 18
  • 20232 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: calculation.

  • Condition for precipitation on mixing solutions
  • Ions remaining after precipitation

Difficulty

Easy 1Medium 4Hard 0

2 of the 5 questions had a numerical answer.

Every question

All 5 questions

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

  1. 2 Apr 2025, Shift 1 · Q56If equal volumes of AB2\mathrm{AB_2} and XY (both are salts) aqueous solutions are mixed, which of the following combination will give a…MediumSingle correct
  2. 30 Jan 2024, Shift 1 · Q84The pH at which Mg(OH)2\mathrm{Mg(OH)_2} [Ksp=1×10−11K_{sp} = 1\times10^{-11}] begins to precipitate from a solution containing 0.10 M…EasyNumerical value
  3. 13 Apr 2023, Shift 1 · Q8525.0 mL of 0.050 M Ba(NO3)2\mathrm{Ba(NO_3)_2} is mixed with 25.0 mL of 0.020 M NaF. Ksp\mathrm{K_{sp}} of BaF2\mathrm{BaF_2} is 0.5×10−60.5\times10^{-6}…MediumNumerical value
  4. 11 Apr 2023, Shift 1 · Q6325 mL of silver nitrate solution (1M) is added dropwise to 25 mL of potassium iodide (1.05 M) solution. The ion(s) present in very small…MediumSingle correct
  5. 9 Jan 2020, Shift 1 · Q30The Ksp\mathrm{K_{sp}} for the following dissociation is 1.6×10−51.6\times10^{-5}…MediumSingle correct

Shifts: 9 Jan 2020, Shift 1, 11 Apr 2023, Shift 1, 13 Apr 2023, Shift 1, 30 Jan 2024, Shift 1, 2 Apr 2025, Shift 1.

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