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AIIMS2007Chemistryp Block Elements (Group 15, 16, 17 & 18)

Assertion : ( F ) is more electronegative than ( Cl ). Reason : ( F ) has high electron affinity than ( Cl ).

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

C. If assertion is true but reason is false.

Step-by-step solution

Chlorine has high electron affinity than fluorine. The less negative electron gain enthalpy of fluorine as compared to chlorine is due to very small size of the fluorine atom.

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