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Saturday, 31 October

JEE Main 2024 · ChemistryMultiple choiceTwo statementsMediumConceptual

JEE Main 1 February 2024, Shift 2, Chemistry Q62

Question 62 of 90 in this shift, Chemistry question 2 of 30, Section A.

Given below are two statements : Statement (I) : A π\pi bonding MO has lower electron density above and below the inter-nuclear axis. Statement (II) : The π∗\pi^* antibonding MO has a node between the nuclei. In the light of the above statements, choose the most appropriate answer from the options given below :
  1. (1)Both Statement I and Statement II are true
  2. (2)Both Statement I and Statement II are false
  3. (3)Statement I is true but Statement II is false
  4. (4)Statement I is false but Statement II is trueOfficial answer

Official answer

Option 4

NTA final key.

Chapter
Chemical Bonding and Molecular Structure
Topic
Molecular Orbital Theory
Idea tested
Symmetry of Pi Molecular Orbitals

Same topic in other shifts

All Molecular Orbital Theory questions
  1. 2 Apr 2026, Shift 1 · Q53Given below are two statements : Statement (I) : The correct sequence of bond lengths in the following species is :…MediumTwo statements
  2. 4 Apr 2026, Shift 2 · Q53Which of the following pictorial diagram most correctly represents the π∗\pi^* (π\pi-antibonding) molecular orbital between two atoms if…MediumDiagram basedHas a figure
  3. 4 Apr 2024, Shift 1 · Q82Number of molecules/species from the following having one unpaired electron is ________. O2\mathrm{O_2}, O2−1\mathrm{O_2^{-1}}, NO,…MediumNumerical value
  4. 8 Apr 2024, Shift 2 · Q61When ψA\psi_A and ψB\psi_B are the wave functions of atomic orbitals, then σ∗\sigma^* is represented by :EasySingle correct
  5. 8 Apr 2024, Shift 2 · Q83Number of molecules having bond order 2 from the following molecules is ________. C2\mathrm{C_2}, O2\mathrm{O_2}, Be2\mathrm{Be_2},…MediumNumerical value
  6. 9 Apr 2024, Shift 1 · Q82The total number of species from the following in which one unpaired electron is present, is ________.…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.