# Among the following statements the incorrect one is

$(a)\;\text{Calamine and siderite are carbonates} \\(b)\;\text{Argentite and cuprite are oxides } \\(c)\;\text{ Zinc blende and iron pyrites are sulphides } \\ (d)\;\text{(d) Malachite and azurite are ores of copper }$

The correct statement is :Argentite and cuprite are oxides
Hence b is the correct answer.