Chemistry - Complete Pblock- Question with Solution | TestHub

For hypohalous acids, acidic strength increases with the electronegativity of the halogen:

HOCl > HOBr > HOI

For hydrogen halides, bond strength decreases down the group, so acidity increases:

HF < HCl < HBr

For oxoacids of carbon:

CO₂ > CO

because CO₂ forms carbonic acid in water.

For chlorine oxoacids, acidity increases with an increase in the oxidation state of Cl:

HClO₂ < HClO₃ < HClO₄

Hence, the correct orders are:

A, C, D