Melting pig iron with scrap iron and coke is called

The anodes are of impure metal and pure metal are taken as cathode. The technique used here is 

Cinnabar is an ore of

The reduction of Iron oxides takes place in different temperature ranges. It is carried out in

In the electrolytic cell for the extraction of Al, the gases formed in anode are

The technique very useful for low boiling metals like Zinc and Mercury is

The technique  very useful in the refining of low melting metal like tin is

Oxidising impurities of cast iron is a reverberatory furnace lined with haematite, we get

Different compound of a mixture are differently adsorbed on an adsorbant.This principle is based on

In the reduction of molten metal salt, _____ is done .