Correct order of bond dissociation enthalpy of the halogens

1. A.
   $\mathrm{F_2 > Cl_2 > Br_2 > I_2}$
2. B.
   $\mathrm{I_2 > Br_2 > Cl_2 > F_2}$
3. C.
   $\mathrm{Cl_2 > Br_2 > F_2 > I_2}$
4. D.
   $\mathrm{Br_2 > I_2 > F_2 > Cl_2}$

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1. A.
   $\mathrm{I\text{-}I > Br\text{-}Br > Cl\text{-}Cl > F\text{-}F}$
2. B.
   $\mathrm{Cl\text{-}Cl > Br\text{-}Br > F\text{-}F > I\text{-}I}$
3. C.
   $\mathrm{I\text{-}I > Br\text{-}Br > Cl\text{-}Cl > F\text{-}F}$
4. D.
   $\mathrm{Br\text{-}Br > F\text{-}F > I\text{-}I > Cl\text{-}Cl}$

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