Based on the concept of oxidation states and effective electronegativity, what is the correct increa — Periodic Table and Periodicity Chemistry Question

💡 Solution & Explanation

Acidic strength of oxoacids increases with the positive oxidation state of the central atom. The states are $+1$ in $HClO$, $+3$ in $HClO_2$, $+5$ in $HClO_3$, and $+7$ in $HClO_4$.