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JEE Main2014ChemistryChemical Bonding and Molecular StructureActual

The correct order of bond dissociation energy among N ₂, O ₂, O ₂⁻ is shown in which of the following arrangements?

Options

  1. AN ₂> O ₂⁻> O ₂
  2. BO ₂⁻> O ₂> N ₂
  3. CN ₂> O ₂> O ₂⁻
  4. DO ₂> O ₂⁻> N ₂

Correct answer

C. N ₂> O ₂> O ₂⁻

Step-by-step solution

The bond order of N ₂, O ₂ , and O ₂⁻ are respectively 3,2 and 1.5 Since higher bond order implies higher bond dissociation energy hence the correct order will be N ₂> O ₂> O ₂⁻

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