How many oxides among the following are basic in nature?
$As_2O_3, Na_2O, MgO, Mn_2O_3, CaO, ZnO, N_2O, N_2O_5$
$As_2O_3, Na_2O, MgO, Mn_2O_3, CaO, ZnO, N_2O, N_2O_5$
- A$4$
- B$5$
- C$3$
- D$6$
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