Learn

Saturday, 31 October

JEE Main · Chemistry · The d- and f-Block Elements

Chromyl Chloride Test Reactions

JEE Main asked Chromyl Chloride Test Reactions 3 times in 3 of the 108 shifts Lumi analysed, all in 2024. It belongs to d-Block Elements, in The d- and f-Block Elements (Chemistry). In 2024 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
3
in 3 shifts
Years
1 of 8
First asked
2024
the only year
Pattern
New since 2024
across the analysed shifts

Questions on this idea a shift, by year

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

00.10.20’170’200’210’220’230.14’240’250’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 0 in 24 shifts · 2022: 0 in 24 shifts · 2023: 0 in 12 shifts · 2024: 3 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
  • 20243 of 18
  • 20230 of 12
  • 20220 of 24
  • 20210 of 24
  • 20200 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: recall.

  • Identify compounds in reaction sequence
  • Oxidation state in reaction product

Difficulty

Easy 1Medium 2Hard 0

1 of the 3 questions had a numerical answer.

Every question

All 3 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 2 · Q90In the reaction of potassium dichromate, potassium chloride and sulfuric acid (conc.), the oxidation state of the chromium in the product…EasyNumerical value
  2. 30 Jan 2024, Shift 2 · Q80A and B formed in the following reactions are: CrO2Cl2+4NaOH→A+2NaCl+2H2O\mathrm{CrO_2Cl_2} + 4\mathrm{NaOH} \to A + 2\mathrm{NaCl} + 2\mathrm{H_2O}…MediumSingle correct
  3. 27 Jan 2024, Shift 1 · Q80NaCl reacts with conc. H2SO4\mathrm{H_2SO_4} and K2Cr2O7\mathrm{K_2Cr_2O_7} to give reddish fumes (B), which react with NaOH to give yellow…MediumSingle correct

Shifts: 27 Jan 2024, Shift 1, 30 Jan 2024, Shift 2, 31 Jan 2024, Shift 2.

Same topic

Other ideas in d-Block Elements

d-Block Elements has 31 ideas JEE Main has asked; 21 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas