Which of the following trend correctly represents the stability of oxides of halogens.

detailed solution

Correct option is A

In oxides of halogen, the bond polarity, however, increases as we move from F to I. The stability of oxides of iodine is greater than those of chlorine. Iodine-oxygen bond is stable due to greater polarity of the bond while the stability of the chlorine-oxygen bond is due to multiple bond formation involving d-orbitals of the chlorine atom. Bromine being in between lacks both these characteristics. Thus, the stability of oxides of halogens decreases in the order : I > Cl > Br > F.