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AIIMS2013ChemistryThermodynamics (C)

Assertion : Bond dissociation energy is F ₂> Cl ₂ Reason : Cl ₂ has more electronic repulsion than F ₂ .

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of assertion.
  2. BIf both 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

D. If both assertion and reason are false.

Step-by-step solution

Bond dissociation energy is F ₂ < Cl ₂ because of relatively large electron-electron repulsion among the lone pairs in F ₂ molecule where they are much closer to each other than in Cl ₂ .

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