Question

Which of the following is true for mixed oxides

• A. Contains cations of more than one element
• B. Contains cations of one element with different oxidation state
• C. It can be both (A) and (B)
• D. Only (A) is correct

Answer 1

The correct option is C It can be both (A) and (B)

Some examples for mixed oxides containing cations of more than one element include ilmenite $\left(FeTi{O}_3\right),$ a mixed oxide of iron $\left(F{e}^{2+}\right)$ and titanium $\left(T{i}^{4+}\right)$ cations and for mixed oxides containing cations of one element with different oxidation states is magnetite $F{e}_3{O}_4,$ which contains the cations $F{e}^{2+}$ ("ferrous" iron) and $F{e}^{3+}$ ("ferric" iron) in 1:2 ratio.