Question

Why is thw oxide of manganese in less oxidation state more basic than the oxide in more oxidation state?

Answer 1

Metals with high oxidation states form oxides whose bonds have a more covalent nature. ... Ionic metal oxides react with water to give hydroxides (compounds containing the OH− ion) and resultant basic solutions, whereas most nonmetal oxides react with water to form acids and resultant acidic solutions (see the table).

Answer 2

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Manganese. The most common oxidation states of the metal manganese are +2, +3, +4, +6, and +7; the +2 oxidation state is the most stable