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Saturday, 31 October

JEE Main 2023 · ChemistryMultiple choiceOtherMediumConceptual

JEE Main 15 April 2023, Shift 1, Chemistry Q63

Question 63 of 90 in this shift, Chemistry question 3 of 30, Section A.

Consider the following statements: (A) NF3\mathrm{NF_3} molecule has a trigonal planar structure. (B) Bond length of N2\mathrm{N_2} is shorter than O2\mathrm{O_2}. (C) Isoelectronic molecules or ions have identical bond order. (D) Dipole moment of H2S\mathrm{H_2S} is higher than that of water molecule. Choose the correct answer from the options given below:
  1. (1)(A) and (B) are correct
  2. (2)(B) and (C) are correctOfficial answer
  3. (3)(C) and (D) are correct
  4. (4)(A) and (D) are correct

Official answer

Option 2

NTA final key.

Chapter
Chemical Bonding and Molecular Structure
Topic
VSEPR Theory
Idea tested
Steric Number 4 Shapes

Same idea in other shifts

Asked 7× in all
  1. 4 Apr 2024, Shift 2 · Q68The number of species from the following that have pyramidal geometry around the central atom is ______…MediumSingle correct
  2. 6 Apr 2024, Shift 1 · Q62Match List I with List II LIST I (Molecule / Species) A. SO2Cl2\mathrm{SO_2Cl_2} B. NO C. NO2−\mathrm{NO_2^-} D. I3−\mathrm{I_3^-} LIST II…MediumMatch the list
  3. 8 Apr 2024, Shift 1 · Q62Match List I with List II LIST I (Molecule): A. NH3\mathrm{NH_3}; B. BrF5\mathrm{BrF_5}; C. PCl5\mathrm{PCl_5}; D. CH4\mathrm{CH_4} LIST II…EasyMatch the list
  4. 31 Jan 2024, Shift 1 · Q83The number of species from the following in which the central atom uses sp3\mathrm{sp^3} hybrid orbitals in its bonding is _________.…MediumNumerical value
  5. 11 Apr 2023, Shift 1 · Q62Match List-I with List-II : List-I Species | List-II Geometry/Shape A. H3O+\mathrm{H_3O^+} | I. Tetrahedral B. Acetylide anion | II. Linear…EasyMatch the list
  6. 27 Jul 2022, Shift 2 · Q88The number of molecule(s) or ion(s) from the following having non-planar structure is __________. NO3−\mathrm{NO_3^-}, H2O2\mathrm{H_2O_2},…MediumNumerical 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.