The order in which the following oxides are arranged according to decreasing basic nature is

Options

A. `Na_(2)O,MgO,Al_(2)O_(3),CuO`
B. `MgO,Al_(2)O_(3),CuO,Na_(2)O`
C. `Al_(2)O_(3),MgO,CuO,Na_(2)O`
D. `CuO,Na_(2)O,MgO,Al_(2)O_(3)`

Answer

A

Explanation

`Na_(2)O,MgO,Al_(2)O_(3),CuO`. The more the metallic character the higher the `e^(-)` donating tendency. Therefore lower the `IE` more the basic nature of oxide.