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The non-metal ions lose electrons to the anode (this is called oxidation) and are discharged as non-metal atoms which often combine to form molecules. In this way, elements that are present in ionic compounds can be separated by electrolysis. This method is used for the extraction of some metals from their ore.See for example lead bromide, magnesium chloride, potassium chloride, sodium chloride and zinc chloride.he non-metal ions lose electrons to the anode (this is called oxidation) and are discharged as non-metal atoms which often combine to form molecules. In this way, elements that are present in ionic compounds can be separated by electrolysis. This method is used for the extraction of some metals from their ore.
Making the world better, one answer at a time. Many ores contain metal oxides. Metal oxides are more stable than metals. Energy is required to break the metal oxygen bond in these metal oxides to release the metal in its elemental form.n refining Iron from its ore you put the iron ore in an oxygen deprived environment. This is done by surrounding the ore with coal so that the Carbon in the coal 'robs' the oxygen off of the Iron to foster its own oxidation. This gives the iron not chance to re-oxidize.