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Saturday, 31 October

JEE Main 2024 · ChemistryNumerical answerNumerical valueEasyApplication

JEE Main 5 April 2024, Shift 2, Chemistry Q82

Question 82 of 90 in this shift, Chemistry question 22 of 30, Section B.

Number of compounds from the following with zero dipole moment is ________. HF\mathrm{HF}, H2\mathrm{H_2}, H2S\mathrm{H_2S}, CO2\mathrm{CO_2}, NH3\mathrm{NH_3}, BF3\mathrm{BF_3}, CH4\mathrm{CH_4}, CHCl3\mathrm{CHCl_3}, SiF4\mathrm{SiF_4}, H2O\mathrm{H_2O}, BeF2\mathrm{BeF_2}

Official answer

6

NTA final key.

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
  1. 4 Apr 2024, Shift 1 · Q62Which one of the following molecules has maximum dipole moment ?EasySingle correct
  2. 4 Apr 2024, Shift 2 · Q82Number of compounds / species from the following with non-zero dipole moment is ________.…MediumNumerical value
  3. 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) : NH3\mathrm{NH_3}…MediumAssertion–reason
  4. 10 Apr 2023, Shift 1 · Q72The pair from the following pairs having both compounds with net non-zero dipole moment isMediumSingle correct
  5. 25 Jun 2022, Shift 2 · Q83Amongst BeF2\mathrm{BeF_2}, BF3\mathrm{BF_3}, H2O\mathrm{H_2O}, NH3\mathrm{NH_3}, CCl4\mathrm{CCl_4} and HCl, the number of molecules with…MediumNumerical value
  6. 30 Jun 2022, Shift 1 · Q82Amongst the following, the number of molecule/(s) having net resultant dipole moment is ___________. NF3\mathrm{NF_3}, BF3\mathrm{BF_3},…EasyNumerical value
  7. 2 Sep 2020, Shift 1 · Q29If AB4\mathrm{AB_4} molecule is a polar molecule, a possible geometry of AB4\mathrm{AB_4} is :EasySingle correct

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.