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Saturday, 31 October

JEE Main · Chemistry · Coordination Compounds

Confirmatory Tests

JEE Main asked Confirmatory Tests 4 times in 4 of the 108 shifts Lumi analysed, in 2021, 2022, 2023 and 2024. It belongs to Cation Analysis, in Coordination Compounds (Chemistry). The longest wait between two years asking it was 1 year.

Updated 2026-10-24

Times asked
4
in 4 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.

00.050.10’170’200.03’210.03’220.07’230.05’240’250’26

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: 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
  • 20211 of 24
  • 20200 of 12
  • 20170 of 1

Asked in that shift More than once Not asked

How JEE Main framed it

Match the list is the usual form. Skill tested: recall.

  • Match list on salt analysis tests
  • Statements on ni-dmg chelate and prussian blue

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. 1 Feb 2024, Shift 2 · Q80Given below are two statements : Statement (I) : Dimethyl glyoxime forms a six-membered covalent chelate when treated with…MediumTwo statements
  2. 11 Apr 2023, Shift 2 · Q73Match List I with List II LIST I (Complex) | LIST II (Colour) A. Mg(NH4)PO4\mathrm{Mg(NH_4)PO_4} | I. brown B. K3[Co(NO2)6]\mathrm{K_3[Co(NO_2)_6]} | II.…MediumMatch the list
  3. 27 Jul 2022, Shift 2 · Q80Fe3+\mathrm{Fe^{3+}} cation gives a prussian blue precipitate on addition of potassium ferrocyanide solution due to the formation of :EasySingle correct
  4. 3 Aug 2021, Shift 2 · Q48Match List I with II List I | List II (Ion detected) A. Borax Bead test | I. As3+\mathrm{As^{3+}} B. Charcoal cavity test | II.…MediumMatch the list

Shifts: 3 Aug 2021, Shift 2, 27 Jul 2022, Shift 2, 11 Apr 2023, Shift 2, 1 Feb 2024, Shift 2.

Same topic

Other ideas in Cation Analysis

Cation Analysis has 12 ideas JEE Main has asked; 6 of them came up in more than one question.

Topic analysisChapter analysisStudy this chapterAll repeated ideas