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Chemistry · General Organic Chemistry

NEET (UG) 2025 — Question 71

Among the given compound I-III, the correct order of bond dissociation energy of C−H\mathrm{C}-\mathrm{H} bond marked with * is :-

Question figure
  1. Option A:

    II >> I >> III

    Correct
  2. Option B:

    I >> II >> III

  3. Option C:

    III >> II >> I

  4. Option D:

    II >> III >> I

Answer: A

Step-by-step solution

Bond dissociation energy ∝1 Stability of \propto \frac{1}{\text { Stability of }} free radical formed after C-Hbond fission homolytically

figure

Stability order III > I > II

Bond dissociation energy order ⇒\Rightarrow II >> I >> III.

Answer key and solution verified before publishing.

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Exam
NEET (UG) 2025
Paper
2025 paper
Subject
Chemistry
Chapter
General Organic Chemistry
Topic
Acidic & Basic Strengths of Organic Compounds
Among the given compound I-III, the correct order of bond… | NEET (UG) 2025 PYQ with Solution · DhiX AI