Which of the following statement is incorrect about the extractive metallurgy of coper?

Options

A. Matte chiefly consists of iron sulphide and some ferrous oxide.
B. The impurity of iron sulphide is removed as fusible slag, `FeSiO_(3)` during roasting.
C. The copper pyrite is concentrated by froth floatation process.
D. Copper is obtained by self reduction in bessemer converter.

Answer

A

Explanation

Copper matte contain `Cu_(2)S and FeS`.