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Question

The greater reactivity of F2 is due to :
  1. higher electronegativity of F.
  2. gaseous state of F2.
  3. lower electron affinity of F.
  4. lower bond energy of FF bond.

A
lower electron affinity of F.
B
gaseous state of F2.
C
higher electronegativity of F.
D
lower bond energy of FF bond.
Solution
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The greater reactivity of F2 is due to lower bond energy of F- F bond and bond energy is lower because of charge repulsion between two F atoms (due to lower size of F atom charge density is high and repulsion is very high so bond energy is low) making its bond enthalpy lower..

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