Chemistry - CHEMICAL BONDING Question with Solution | TestHub

$\text{Bond}\text{energy}\propto \frac{1}{\text{Bond length}}$
As on moving down the group size increases so bond length increases hence bond energy decreases.
Bond energy$\mathrm{C}–\mathrm{F}>\mathrm{C}–\text{Cl}>\mathrm{C}–\text{Br}>\mathrm{C}–\mathrm{I}$