JEE Main 2020 · ChemistryMultiple choiceSingle correctEasyConceptual

JEE Main 2 September 2020, Shift 1, Chemistry Q29

Question 29 of 75 in this shift, Chemistry question 4 of 25.

\mathrm{AB_4}

molecule is a polar molecule, a possible geometry of

\mathrm{AB_4}

is :

(1)Tetrahedral
(2)Square planar
(3)Rectangular planar
(4)Square pyramidalOfficial answer

Official answer

Option 4

NTA final key (Sep 2020).

Chapter: Chemical Bonding and Molecular Structure
Topic: VSEPR Theory
Idea tested: Net Dipole Moment from VSEPR Symmetry

Same idea in other shifts

Asked 8× in all

4 Apr 2024, Shift 1 · Q62Which one of the following molecules has maximum dipole moment ?EasySingle correct
4 Apr 2024, Shift 2 · Q82Number of compounds / species from the following with non-zero dipole moment is ________.…MediumNumerical value
5 Apr 2024, Shift 2 · Q62Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : $\mathrm{NH_3}$ …MediumAssertion–reason
5 Apr 2024, Shift 2 · Q82Number of compounds from the following with zero dipole moment is ________. $\mathrm{HF}$ , $\mathrm{H_2}$ , $\mathrm{H_2S}$ ,…EasyNumerical value
10 Apr 2023, Shift 1 · Q72The pair from the following pairs having both compounds with net non-zero dipole moment isMediumSingle correct
25 Jun 2022, Shift 2 · Q83Amongst $\mathrm{BeF_2}$ , $\mathrm{BF_3}$ , $\mathrm{H_2O}$ , $\mathrm{NH_3}$ , $\mathrm{CCl_4}$ and HCl, the number of molecules with…MediumNumerical value
30 Jun 2022, Shift 1 · Q82Amongst the following, the number of molecule/(s) having net resultant dipole moment is ___________. $\mathrm{NF_3}$ , $\mathrm{BF_3}$ ,…EasyNumerical value

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.