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Saturday, 31 October

JEE Main · Chemistry · Chemical Bonding and Molecular Structure

Steric Number Calculation

JEE Main asked Steric Number Calculation 14 times in 13 of the 108 shifts Lumi analysed, in 2021, 2022, 2023, 2024, 2025 and 2026. It belongs to VSEPR Theory, in Chemical Bonding and Molecular Structure (Chemistry). The longest wait between two years asking it was 1 year. In 2022, 2024, 2025 and 2026 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
14
in 13 shifts
Years
6 of 8
First asked
2021
last in 2026
Pattern
Asked most years
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2021, 2022, 2023, 2024, 2025 and 2026. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.

00.150.30’170’200.03’210.14’220.07’230.19’240.25’250.22’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 1 in 24 shifts · 2022: 4 in 24 shifts · 2023: 1 in 12 shifts · 2024: 4 in 18 shifts · 2025: 2 in 8 shifts · 2026: 2 in 9 shifts.

Shift by shift

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

  • 20262 of 9
  • 20252 of 8
  • 202423 of 18
  • 20231 of 12
  • 20224 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

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

  • Count species with given hybridisation
  • Match list on hybridisation of species

Difficulty

Easy 4Medium 9Hard 1

5 of the 14 questions had a numerical answer.

Every question

All 14 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 2 · Q53Given below are two statements : Statement I : The number of compounds among SO2\mathrm{SO_2}, SO3\mathrm{SO_3}, SF4\mathrm{SF_4},…HardTwo statements
  2. 5 Apr 2026, Shift 1 · Q71Consider the following species: BrF5\mathrm{BrF_5}, XeF5−\mathrm{XeF_5^-}, BF4−\mathrm{BF_4^-}, ICl4−\mathrm{ICl_4^-}, XeF4\mathrm{XeF_4},…MediumNumerical value
  3. 7 Apr 2025, Shift 2 · Q58In SO2\mathrm{SO_2}, NO2−\mathrm{NO_2^-} and N3−\mathrm{N_3^-} the hybridizations at the central atom are respectively :EasySingle correct
  4. 7 Apr 2025, Shift 1 · Q58Match the LIST-I with LIST-I LIST-I (Molecule / ion) | LIST-II (Bond pair : lone pair (on the central atom)) A. ICl2−\mathrm{ICl_2^-} | I. 4…MediumMatch the list
  5. 9 Apr 2024, Shift 1 · Q62In which one of the following pairs the central atoms exhibit sp2sp^2 hybridization ?EasySingle correct
  6. 6 Apr 2024, Shift 2 · Q62Given below are two statements : Statement I : PF5\mathrm{PF_5} and BrF5\mathrm{BrF_5} both exhibit sp3dsp^3d hybridisation. Statement II :…MediumTwo statements
  7. 6 Apr 2024, Shift 2 · Q82Total number of species from the following with central atom utilising sp2\mathrm{sp^2} hybrid orbitals for bonding is ________.…MediumNumerical value
  8. 4 Apr 2024, Shift 1 · Q68Number of molecules/ions from the following in which the central atom is involved in sp3\mathrm{sp^3} hybridization is ________.…MediumSingle correct
  9. 8 Apr 2023, Shift 2 · Q82The number of species from the following carrying a single lone pair on central atom Xenon is ____________. XeF5+\mathrm{XeF_5^+},…MediumNumerical value
  10. 28 Jun 2022, Shift 1 · Q83The hybridization of P exhibited in PF5\mathrm{PF_5} is spxdysp^xd^y. The value of y is ________EasyNumerical value
  11. 24 Jun 2022, Shift 1 · Q63Match List - I with List - II : List - I (A) [PtCl4]2−[\mathrm{PtCl_4}]^{2-} (B) BrF5\mathrm{BrF_5} (C) PCl5\mathrm{PCl_5} (D)…MediumMatch the list
  12. 29 Jul 2022, Shift 2 · Q82Consider, PF5\mathrm{PF_5}, BrF5\mathrm{BrF_5}, PCl3\mathrm{PCl_3}, SF6\mathrm{SF_6}, [ICl4]−\mathrm{[ICl_4]^{-}}, ClF3\mathrm{ClF_3} and…MediumNumerical value
  13. 29 Jul 2022, Shift 1 · Q68Number of lone pairs of electrons in the central atom of SCl2\mathrm{SCl_2}, O3\mathrm{O_3}, ClF3\mathrm{ClF_3} and SF6\mathrm{SF_6},…EasySingle correct
  14. 22 Jul 2021, Shift 2 · Q31Match List - I with List - II : List - I (Species) List - II (Hybrid Orbitals) (a) SF4\mathrm{SF_4} (i) sp3d2sp^3d^2 (b) IF5\mathrm{IF_5} (ii)…MediumMatch the list

Shifts: 22 Jul 2021, Shift 2, 24 Jun 2022, Shift 1, 28 Jun 2022, Shift 1, 29 Jul 2022, Shift 2, 29 Jul 2022, Shift 1, 8 Apr 2023, Shift 2, 4 Apr 2024, Shift 1, 6 Apr 2024, Shift 2, 9 Apr 2024, Shift 1, 7 Apr 2025, Shift 2, 7 Apr 2025, Shift 1, 5 Apr 2026, Shift 1, 6 Apr 2026, Shift 2.

Same topic

Other ideas in VSEPR Theory

VSEPR Theory has 25 ideas JEE Main has asked; 13 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas