Question:
The correct order of bond dissociation enthalpy of halogen is :
Correct Option: , 3
Solution:
Fact based $\mathrm{F}_{2}$ has $\mathrm{F}-\mathrm{F}, \mathrm{F}_{2}$ involves repulsion of non-bonding electrons $\backslash$ more over its size is small $\&$ hence due to high repulsion its bond dissociation energy in very low.
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