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Manipal MET2018ChemistryChemical Bonding and Molecular Structure

The order of relative bond strength of oxygen molecule, superoxide ion and peroxide ion is

Options

  1. AO ₂ O ₂⁻ O ₂²⁻
  2. BO ₂ O ₂⁻ O ₂²⁻
  3. CO ₂ O ₂⁻ O ₂²⁻
  4. DO ₂ O ₂⁻ O ₂²⁻

Correct answer

B. O ₂ O ₂⁻ O ₂²⁻

Step-by-step solution

Bond strength depends on bond order. More is the bond order, more is the strength. array cc Species & Bond order O ₂ & 2 O ₂⁻ & 1.5 O ₂ ²⁻ & 1.0 array Hence, the order of bond strength is as : O ₂ O ₂⁻ O ₂²⁻

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