Which of the following is true for the basic character of lanthanoid oxides (Ln2O3)?

Basic character of oxides decreases as size of ion become greater Basic character of oxides increases as size of ion become greater Basic character of oxides decreases as size of ion become smaller Basic character of oxides increases as size of ion become greater

Basic character of oxides decreases as size of ion become smaller

Reaction with O2 Ln + O2 → Ln2O3  These oxides are basic and basic character decreases as size of ion become smaller.