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Chemistry · Chemical Bonding

JEE Main 2025 — 24 January, Evening Shift — Question 29

Given below are two statements :

Statement(I) : Experimentally determined oxygen-oxygen bond lengths in the O3\mathrm{O}_{3} are found to be same and the bond length is greater than that of a O=O\mathrm{O}=\mathrm{O} (double bond) but less than that of a single ( O−O\mathrm{O}-\mathrm{O} ) bond.

Statement (II) : The strong lone pair-lone pair repulsion between oxygen atoms is solely responsible for the fact that the bond length in ozone is smaller than that of a double bond (O=O)(\mathrm{O}=\mathrm{O}) but more than that of a single bond (O−O)(\mathrm{O}-\mathrm{O}).

In the light of the above statements, choose the correct answer from the options given below:

  1. Option A:

    Statement I is true but Statement II is false

    Correct
  2. Option B:

    Both Statement I and Statement II are true

  3. Option C:

    Both Statement I and Statement II are false

  4. Option D:

    Statement I is false but Statement II is true

Answer: A

Step-by-step solution

Due to resonance bond length is identical in ozone. Therefore statement I is true and statement II is

false

Answer key and solution verified before publishing.

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Exam
JEE Main 2025
Paper
24 January, Evening Shift
Subject
Chemistry
Chapter
Chemical Bonding
Topic
Back Bonding, Bent's Rule, Analysis of Bond Parameters + Miscellaneous Cases

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