JEE Main 2024 · ChemistryNumerical answerNumerical valueMediumApplication

JEE Main 29 January 2024, Shift 1, Chemistry Q83

Question 83 of 90 in this shift, Chemistry question 23 of 30, Section B.

Number of compounds with one lone pair of electrons on central atom amongst following is ________

\mathrm{O_3, H_2O, SF_4, ClF_3, NH_3, BrF_5, XeF_4}

Official answer

NTA final key.

Chapter: Chemical Bonding and Molecular Structure
Topic: VSEPR Theory
Idea tested: Steric Number 5 Derivative Shapes

Same topic in other shifts

All VSEPR Theory questions

2 Apr 2026, Shift 2 · Q53 $SF_4$ is isostructural with: A. $BrF_4^{\oplus}$ B. $CH_4$ C. $IF_4^{\oplus}$ D. $XeF_4$ E. $XeO_2F_2$ Choose the correct answer from the…MediumSingle correct
5 Apr 2026, Shift 1 · Q71Consider the following species: $\mathrm{BrF_5}$ , $\mathrm{XeF_5^-}$ , $\mathrm{BF_4^-}$ , $\mathrm{ICl_4^-}$ , $\mathrm{XeF_4}$ ,…MediumNumerical value
5 Apr 2026, Shift 2 · Q59Given below are two statements : Statement I : Aluminium upon reaction with NaOH forms $\mathrm{[Al(OH)_6]^{3-}}$ ion. Statement II : The…MediumTwo statements
6 Apr 2026, Shift 1 · Q54The pairs among $\mathrm{A}=\left[\mathrm{SO_3^{2-},CO_3^{2-}}\right]$ , $\mathrm{B}=\left[\mathrm{O_2^{2-},F_2}\right]$ ,…MediumSingle correct
6 Apr 2026, Shift 2 · Q53Given below are two statements : Statement I : The number of compounds among $\mathrm{SO_2}$ , $\mathrm{SO_3}$ , $\mathrm{SF_4}$ ,…HardTwo statements
6 Apr 2026, Shift 2 · Q59Given below are two statements : Statement I : $\mathrm{F_2O<H_2O<Cl_2O}$ 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 42 of the 174 JEE Main shifts held from 2017 to 2026.