Question

Of the four oxoacids of chlorine the strongest oxidising agent in dilute aqueous solution is

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

Answer 1

The correct option is D

$HOCl$

$HClO$ is the strongest oxidising agent. The correct order of oxidising power is
$\stackrel{+1}{HClO}>H\stackrel{+3}{C}l{O}_2>\stackrel{+5}{HCl{O}_3}$$>\stackrel{+7}{HCl{O}_4}$ as it can donate oxygen easily in this order.