Question

Froth floatation process is used for the concentration of ______.

Options

• sulphide ores

• oxide ores

• carbonate ores

• silicate ores

Answer 1

Froth floatation process is used for the concentration of sulphide ores.

Explanation:

Froth flotation process is used for the concentration of sulphide ores such as zinc blende (ZnS) and copper pyrites (CuFeS₂). In this method, the powdered ore is mixed with water and oil; sulphide particles stick to the froth and rise to the surface, while the gangue particles settle down.