Learn

Saturday, 31 October

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

Specific d-Block Industrial Catalysts

JEE Main asked Specific d-Block Industrial Catalysts 3 times in 3 of the 108 shifts Lumi analysed, in 2021, 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 3 years.

Updated 2026-10-24

Times asked
3
in 3 shifts
Years
3 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, 2024 and 2026. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.

00.10.20’170’200.03’210’220’230.05’240’250.11’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 1 in 24 shifts · 2022: 0 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
  • 20220 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.

  • Count correct statements on d-block catalysts
  • Match list on substances and metal present

Difficulty

Easy 1Medium 1Hard 1

Every question was multiple choice.

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. 6 Apr 2026, Shift 1 · Q60The correct statements among the following are. A. Basic vanadium oxide is used in the manufacture of H2SO4\mathrm{H_2SO_4}. B. The spin-only…HardOther
  2. 29 Jan 2024, Shift 1 · Q70Match List I with List II LIST I (Substances) A. Ziegler catalyst B. Blood Pigment C. Wilkinson catalyst D. Vitamin B12\mathrm{B_{12}} LIST…EasyMatch the list
  3. 18 Mar 2021, Shift 1 · Q33Match List - I with List - II : List - I (Process) (a) Deacon's process (b) Contact process (c) Cracking of hydrocarbons (d) Hydrogenation…MediumMatch the list

Shifts: 18 Mar 2021, Shift 1, 29 Jan 2024, Shift 1, 6 Apr 2026, Shift 1.

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