The removal of impurities from an ore

The removal of impurities from a crude metal is called :

The process of the removal of impurities from a crude metal is called…….

The process of removal of impurities from a crude metal is called :

A flux is often added to remove impurities from an ore in a blast furnace. In the reaction, CaO+SiO_(2) to CaSiO_(3) , the slag and the flux are __________respectively.

Explain magnetic separation of impurities from an ore.

To remove basic impurities from the ore the substance generally used is

To remove basic impurities from the ore the substance generally used is (Roorke screening