Chemistry - Complete Pblock- Question with Solution | TestHub

Principle: Interhalogen compounds ($X{X}_n^{\prime }$) hydrolyze to give a halide ion from the more electronegative halogen ($X^{\prime }$) and an oxyacid from the less electronegative central halogen ($X$), preserving its oxidation state.

(A) HOF: Cannot be obtained because Fluorine is the most electronegative element; it always acts as the terminal atom ($X^{\prime }$) and never the central atom ($X$) in interhalogens.

(C) HClO₄: In this oxyacid, Chlorine has an oxidation state of $+7$. Its production would require the interhalogen ClF₇, which does not exist because the Chlorine atom is too small to accommodate seven Fluorine atoms.

(B) and (D): These are obtainable via the hydrolysis of IF₅ and IF₇, respectively, where Iodine maintains its $+5$ and $+7$ oxidation states.