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NTA Abhyas NEET2020ChemistryChemical Bonding and Molecular StructurePractice

The correct order in which oxygen-oxygen bond dissociation energy increases is

Options

  1. AH 2 O 2 < O 2 < O 3
  2. BH 2 O 2 < O 3 < O 2
  3. CO 2 < O 3 < H 2 O 2
  4. DO 2 < H 2 O 2 < O 3

Correct answer

B. H 2 O 2 < O 3 < O 2

Step-by-step solution

H 2 O 2 has a peroxide bond with a bond order of 1 while in O 3 the bond order is 1.5 and in O 2 it is 2 . Hence, the bond dissociation energy order is H 2 O 2 < O 3 < O 2

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