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Saturday, 31 October

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

Gravimetric Precipitation Analysis

JEE Main asked Gravimetric Precipitation Analysis 6 times in 6 of the 108 shifts Lumi analysed, in 2021, 2022, 2023, 2025 and 2026. It belongs to Stoichiometry, in Organic Chemistry: Some Basic Principles and Techniques (Chemistry). The longest wait between two years asking it was 2 years. In 2026 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
6
in 6 shifts
Years
5 of 8
First asked
2021
last in 2026
Pattern
Asked most years
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2021, 2022, 2023, 2025 and 2026. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.

00.150.30’170’200.03’210.03’220.07’230’240.13’250.22’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 1 in 24 shifts · 2022: 1 in 24 shifts · 2023: 1 in 12 shifts · 2024: 0 in 18 shifts · 2025: 1 in 8 shifts · 2026: 2 in 9 shifts.

Shift by shift

Each square is one analysed shift, in date order. Open a filled one for that paper.

  • 20262 of 9
  • 20251 of 8
  • 20240 of 18
  • 20231 of 12
  • 20221 of 24
  • 20211 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.

  • Percentage halogen by carius method
  • Percentage of element from precipitate mass

Difficulty

Easy 5Medium 1Hard 0

6 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 2026, Shift 1 · Q72In an estimation of sulphur by Carius method 0.2 g of the substance gave 0.6 g of BaSO4\mathrm{BaSO_4}. The percentage of sulphur in the…EasyNumerical value
  2. 4 Apr 2026, Shift 2 · Q75In sulphur estimation, 2.0×10−32.0\times10^{-3} mol of an organic compound (X) (molar mass 76 g mol−1\mathrm{g\ mol^{-1}}) gave 0.4813 g of barium…EasyNumerical value
  3. 8 Apr 2025, Shift 2 · Q7120 mL of sodium iodide solution gave 4.74 g silver iodide when treated with excess of silver nitrate solution. The molarity of the sodium…EasyNumerical value
  4. 13 Apr 2023, Shift 2 · Q900.400 g of an organic compound (X) gave 0.376 g of AgBr in Carius method for estimation of bromine. % of bromine in the compound (X) is…EasyNumerical value
  5. 28 Jun 2022, Shift 1 · Q90In the estimation of bromine, 0.5 g of an organic compound gave 0.40 g of silver bromide. The percentage of bromine in the given compound…EasyNumerical value
  6. 26 Aug 2021, Shift 2 · Q59In the sulphur estimation, 0.471 g of an organic compound gave 1.44 g of barium sulfate. The percentage of sulphur in the compound is…MediumNumerical value

Shifts: 26 Aug 2021, Shift 2, 28 Jun 2022, Shift 1, 13 Apr 2023, Shift 2, 8 Apr 2025, Shift 2, 4 Apr 2026, Shift 2, 5 Apr 2026, Shift 1.

Same topic

Other ideas in Stoichiometry

Stoichiometry has 24 ideas JEE Main has asked; 13 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas