Question

Red lead is an example of an________ oxide.

• A. basic
• B. super
• C. mixed
• D. amphoteric

Answer 1

The correct option is C mixed

Lead (II,IV) oxide, red lead or triplumbic tetroxide, is a bright red or orange crystalline or amorphous solid pigment. Chemically, red lead is $P{b}_3{O}_4$, or $2PbO.PbO2$. It is used in the manufacture lead glass and rust-proof paints.
In $PbO$ it shows +2 O.S and in $Pb{O}_2$ it shows +4 O.S(If an element shows two oxidation state in one compound then it is called mixed oxide)
Hence option $C$ is correct.