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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.
Zinc is often found in nature together with lead in sulfide ores. The metals are separated during refining. As zinc is resistant to corrosion and easy to apply, much of it is used to protect iron and steel-based products.inc is often found in nature together with lead in sulfide ores. The metals are separated during refining. As zinc is resistant to corrosion and easy to apply, much of it is used to protect iron and steel-based products.