Question

Which one of the following oxyacids of chlorine is the least oxidizing in nature ?

• A. HOCl
• B. $HCl{O}_2$
• C. $HCI{O}_3$
• D. $HCl{O}_4$

Answer 1

Answer: (D)

Oxidising character of oxy-acids of chlorine is in the order
$HCl{O}_4<HCl{O}_3<HCI{O}_2<HOCl$
Thus, $HCl{O}_4$ is the weakest O.A.