Learn

Saturday, 31 October

JEE Main · Chemistry · Coordination Compounds

Spectrochemical Series

JEE Main asked Spectrochemical Series 6 times in 6 of the 108 shifts Lumi analysed, in 2020, 2022, 2024 and 2026. It belongs to Crystal Field Theory, in Coordination Compounds (Chemistry). The longest wait between two years asking it was 2 years. In 2024 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
6
in 6 shifts
Years
4 of 8
First asked
2020
last in 2026
Pattern
Frequent
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2020, 2022, 2024 and 2026. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.

00.10.20’170.08’200’210.03’220’230.14’240’250.11’26

Raw count: 2017: 0 in 1 shift · 2020: 1 in 12 shifts · 2021: 0 in 24 shifts · 2022: 1 in 24 shifts · 2023: 0 in 12 shifts · 2024: 3 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
  • 20243 of 18
  • 20230 of 12
  • 20221 of 24
  • 20210 of 24
  • 20201 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.

  • Match list on complexes and delta_o values
  • Order complexes by wavenumber of absorbed light

Difficulty

Easy 1Medium 5Hard 0

Every question was multiple choice.

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. 2 Apr 2026, Shift 1 · Q62Match List - I with List - II. List - I : Chromium (III) Complexes (en = ethylene diamine) List - II : Δ0\Delta_0 (cm−1\mathrm{cm^{-1}}) A.…MediumMatch the list
  2. 6 Apr 2024, Shift 1 · Q71Consider the following complexes [CoCl(NH3)5]2+\mathrm{[CoCl(NH_3)_5]^{2+}}, [Co(CN)6]3−\mathrm{[Co(CN)_6]^{3-}}, [Co(NH3)5(H2O)]3+\mathrm{[Co(NH_3)_5(H_2O)]^{3+}},…MediumSingle correct
  3. 5 Apr 2024, Shift 1 · Q70The correct order of ligands arranged in increasing field strength.EasySingle correct
  4. 4 Apr 2024, Shift 1 · Q70The correct sequence of ligands in the order of decreasing field strength is :MediumSingle correct
  5. 25 Jul 2022, Shift 2 · Q71The correct order of energy of absorption for the following metal complexes is A : [Ni(en)3]2+\mathrm{[Ni(en)_3]^{2+}}, B :…MediumSingle correct
  6. 2 Sep 2020, Shift 2 · Q37Simplified absorption spectra of three complexes ((i), (ii) and (iii)) of Mn+\mathrm{M^{n+}} ion are provided below; their λmax⁡\lambda_{\max}…MediumDiagram basedHas a figure

Shifts: 2 Sep 2020, Shift 2, 25 Jul 2022, Shift 2, 4 Apr 2024, Shift 1, 5 Apr 2024, Shift 1, 6 Apr 2024, Shift 1, 2 Apr 2026, Shift 1.

Same topic

Other ideas in Crystal Field Theory

Crystal Field Theory has 15 ideas JEE Main has asked; 8 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas