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AIIMS2015ChemistryChemical Bonding and Molecular Structure

Assertion : Molecular nitrogen is less reactive than molecular oxygen. Reason : The bond length of N ₂ is shorter than that of oxygen.

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of assertion.
  2. BIfboth assertion and reason are true but reason is not the correct explanation of assertion.
  3. CIf assertion is true but reason is false.
  4. DIf both assertion and reason are false.

Correct answer

A. If both assertion and reason are true and reason is the correct explanation of assertion.

Step-by-step solution

Bond order of N ₂=3 , bond order of O ₂=2 . Higher the bond order, shorter is the bond length and higher is the bond dissociation energy i.e., higher stability or lesser reactivity. Thus, N ₂ is less reactive than O ₂ .

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