Analyze the specific sequence of manganese oxides: , , and . What is the correct sequence of their a — d and f Block Elements Chemistry Question

💡 Solution & Explanation

As the oxidation number increases, ionic character decreases and covalent/acidic character increases. Lower states ($+2$, $MnO$) are basic. Intermediate states ($+4$, $MnO_2$) are amphoteric. High states ($+7$, $Mn_2O_7$) are strongly acidic.