Chemistry Question on General Principles and Processes of Isolation of Elements

Question

Which one of the following ores is best concentrated by froth - floatation method?

Answer 1

Solution

Galena ( $PbS$ ) is best concentrated by a froth-floatation method. This method is used for the concentration of sulphide ores such as galena ( $PbS$ ), zinc blende ( $Z n S )$ and copper pyrite $\left( CuF eS _{2}\right)$ .