Answer:
HClO3 > HBrO3 > HIO3
Explanation:
let's have a quick look at the terminology used in question,
Acidic strength- It is the ability of any molecule to donate H+ ion
Oxyacids- Acids that contain atleast one hydroxy (-OH) group
in the given oxyacids of Halogens, Chlorine is more electronegative than bromine and iodine.
So it will bind the proton (H+ ion) to it more tightly than other halogens hence the Acidic strength of HClO3 is highest among the following.
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