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Saturday, 31 October

JEE Main 2021 · ChemistryMultiple choiceMatch the listMediumApplication

JEE Main 27 August 2021, Shift 1, Chemistry Q33

Question 33 of 90 in this shift, Chemistry question 3 of 30, Section A.

Match List - I with List - II : List - I (Species) List - II (No. of lone pairs of electrons on the central atom) (a) XeF2\mathrm{XeF_2} (i) 0 (b) XeO2F2\mathrm{XeO_2F_2} (ii) 1 (c) XeO3F2\mathrm{XeO_3F_2} (iii) 2 (d) XeF4\mathrm{XeF_4} (iv) 3 Choose the most appropriate answer from the options given below :
  1. (1)(a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
  2. (2)(a)-(iv), (b)-(ii), (c)-(i), (d)-(iii)Official answer
  3. (3)(a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)
  4. (4)(a)-(iii), (b)-(ii), (c)-(iv), (d)-(i)

Official answer

Option 2

NTA final key.

Chapter
Chemical Bonding and Molecular Structure
Topic
VSEPR Theory
Idea tested
Equatorial Oxygen in TBP Xenon Compounds

Same topic in other shifts

All VSEPR Theory questions
  1. 2 Apr 2026, Shift 2 · Q53SF4SF_4 is isostructural with: A. BrF4⊕BrF_4^{\oplus} B. CH4CH_4 C. IF4⊕IF_4^{\oplus} D. XeF4XeF_4 E. XeO2F2XeO_2F_2 Choose the correct answer from the…MediumSingle correct
  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. 5 Apr 2026, Shift 2 · Q59Given below are two statements : Statement I : Aluminium upon reaction with NaOH forms [Al(OH)6]3−\mathrm{[Al(OH)_6]^{3-}} ion. Statement II : The…MediumTwo statements
  4. 6 Apr 2026, Shift 1 · Q54The pairs among A=[SO32−,CO32−]\mathrm{A}=\left[\mathrm{SO_3^{2-},CO_3^{2-}}\right], B=[O22−,F2]\mathrm{B}=\left[\mathrm{O_2^{2-},F_2}\right],…MediumSingle correct
  5. 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
  6. 6 Apr 2026, Shift 2 · Q59Given below are two statements : Statement I : F2O<H2O<Cl2O\mathrm{F_2O<H_2O<Cl_2O} is the correct trend in terms of bond angle. Statement II :…MediumTwo statements

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.