why MnO is basic and Mn2O7 acidic?
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Answered by
43
lowest oxide of transition is basic and the highest is acidic.MnO has the lowest oxidation state, so it is the most basic. Mn2O3 is next, then MnO2, and finally Mn2O7 (which is actually acidic)as it is the highest
Answered by
25
Hey !!
Mn has + 7 oxidation state in Mn₂O₇ and +2 in MnO. In low oxidation state of the metal, some of the valence electrons of the metal atom are not involved in bonding. Hence, it can donate electrons and behave as a base. On the other hand, in higher oxidation state of the metal, valence electrons are involved in bonding and are not available. Instead effective nuclear charge is high and hence it can accept electron and behave as an acid.
Good luck !!
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