Which of the follwing is the most basic oxide?

Options

A. `SeO_(2)`
B. `Al_(2)O_(3)`
C. `Sb_(2)O_(3)`
D. `Bi_(2)O_(3)`

Answer

4

Explanation

Nonmetals usually form acidic oxides metals usually form basic oxides and metalloids (semimetals) usually form ampoteric oxides. `SeO_(2)` is an acidic oxide as it dissolves in water to give selenious acid `(H_(2)SeO_(3))`. `Al_(2)O_(3)` and `Sb_(2)O_(3)` are amphoteric oxides `Bi_(2)O_(3)` is a basic oxide