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Which is the most basic---CrO3, Mn2O7, NiO, V2O5???? Which is the most basic---CrO3, Mn2O7, NiO, V2O5????
The more the oxidation state the more ot’s oxide would be basic.As Cr has +3 oxidation state.Mn has +7 state.Ni has +2 state.V has +5 state.Mn2O7 > V2O5 > CrO > NiO
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