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Saturday, 31 October

JEE Main · Chemistry · Structure of Atom

Validity of Quantum Number Sets

JEE Main asked Validity of Quantum Number Sets 3 times in 3 of the 108 shifts Lumi analysed, all in 2022. It belongs to Quantum Numbers, in Structure of Atom (Chemistry). In 2022 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
2022
the only year
Pattern
Occasional
across the analysed shifts

Questions on this idea a shift, by year

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

00.050.10’170’200’210.10’220’230’240’250’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 0 in 24 shifts · 2022: 3 in 24 shifts · 2023: 0 in 12 shifts · 2024: 0 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
  • 20240 of 18
  • 20230 of 12
  • 20223 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

Numerical value is the usual form. Skill tested: application.

  • Identify disallowed set of quantum numbers
  • Identify correct statements on quantum numbers

Difficulty

Easy 3Medium 0Hard 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. 28 Jun 2022, Shift 2 · Q62Consider the following statements : (A) The principal quantum number ‘n’ is a positive integer with values of ‘n’ =1,2,3,...=1, 2, 3, ... (B) The…EasyOther
  2. 27 Jun 2022, Shift 2 · Q82Consider the following set of quantum numbers. n l ml\mathrm{m_l} A. 3 3 −3-3 B. 3 2 −2-2 C. 2 1 +1+1 D. 2 2 +2+2 The number of correct…EasyNumerical value
  3. 25 Jul 2022, Shift 1 · Q62Which of the following sets of quantum numbers is not allowed ?EasySingle correct

Shifts: 27 Jun 2022, Shift 2, 28 Jun 2022, Shift 2, 25 Jul 2022, Shift 1.

Same topic

Other ideas in Quantum Numbers

Quantum Numbers has 23 ideas JEE Main has asked; 9 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas