Which of the following statement is incorrect ?

Options

A. Oxide of aluminium `(Al_(2)O_(3))` and arsenic `(As_(2)O_(3))` are amphoteric.
B. Oxide of chlorine `(Cl_(2)O_(7))` is less acidic than oxide of nitrogen `(N_(2)O_(5))`.
C. Oxide of carbon `(CO_(2))` is more acidic than oxide of silica `(SiO_(2))`.
D. The correct increasing order of basic character of various oxides is `H_(2)O lt CuO lt MgO lt CaO`.

Answer

B

Explanation

`overset(+7)(Cl)_(2)O_(7)` having higher oxidation state is more acidic than `overset(+5)(N_(2))O_(5)` having lower oxidation state.