Learn

Saturday, 31 October

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

Color and Catalysis

JEE Main asked Color and Catalysis 7 times in 7 of the 108 shifts Lumi analysed, in 2021, 2022, 2024 and 2026. It belongs to d-Block Elements, in The d- and f-Block Elements (Chemistry). The longest wait between two years asking it was 2 years. In 2021 and 2022 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
7
in 7 shifts
Years
4 of 8
First asked
2021
last in 2026
Pattern
Frequent
across the analysed shifts

Questions on this idea a shift, by year

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

00.10.20’170’200.10’210.07’220’230.05’240’250.11’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 3 in 24 shifts · 2022: 2 in 24 shifts · 2023: 0 in 12 shifts · 2024: 1 in 18 shifts · 2025: 0 in 8 shifts · 2026: 1 in 9 shifts.

Shift by shift

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

  • 20261 of 9
  • 20250 of 8
  • 20241 of 18
  • 20230 of 12
  • 20222 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

Single correct is the usual form. Skill tested: conceptual.

  • Statement i/ii on coloured and diamagnetic ions
  • Identify set of coloured ions

Difficulty

Easy 5Medium 2Hard 0

1 of the 7 questions had a numerical answer.

Every question

All 7 questions

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

  1. 8 Apr 2026, Shift 2 · Q60Given below are two statements : Statement I : The number of pairs among [Ti4+,V2+][\mathrm{Ti^{4+}, V^{2+}}], [V2+,Mn2+][\mathrm{V^{2+}, Mn^{2+}}],…MediumTwo statements
  2. 1 Feb 2024, Shift 2 · Q71Which of the following compounds show colour due to d-d transition ?EasySingle correct
  3. 30 Jul 2022, Shift 2 · Q58The number of coloured and paramagnetic ions from the following in aqueous solution are ________. Ti3+\mathrm{Ti^{3+}}, Co2+\mathrm{Co^{2+}},…MediumNumerical value
  4. 29 Jul 2022, Shift 1 · Q69In following pairs, the one in which both transition metal ions are colourless is :EasySingle correct
  5. 26 Aug 2021, Shift 1 · Q39Which one of the following when dissolved in water gives coloured solution in nitrogen atmosphere ?EasySingle correct
  6. 4 Aug 2021, Shift 2 · Q37Ruby and emerald are coloured due to the presence ofEasySingle correct
  7. 3 Aug 2021, Shift 2 · Q38Which one of the following set will give coloured aqueous solution?EasySingle correct

Shifts: 3 Aug 2021, Shift 2, 4 Aug 2021, Shift 2, 26 Aug 2021, Shift 1, 29 Jul 2022, Shift 1, 30 Jul 2022, Shift 2, 1 Feb 2024, Shift 2, 8 Apr 2026, 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