How does metals extracted??
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Once the ores have been excavated, the metals themselves must then be extracted from the ore, a process that depends on the metals' reactivity, according to BBC. ... Less reactive metals like iron can be extracted with reduction, where oxygen is removed from the ore through a reaction with carbon or carbon dioxide.....
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We can extract metals by various methods:-
Category I :Highly electropositive metals such as alkali metals are extracted by the electrolytic method from their molten/fused salts.
Category II :Electropositive metals such as alkaline earth metals are extracted by electrolytic method form their molten salt.
Category III : Reactive metals of high valency are extracted by reduction and electrolytic method.
Catagory IV :Heavy metals such as Fe, Co, Ni , Cu , etc . are extracted by roasting and reduction methods.
Catagory V :Less reactive metals such as Ag, Au, Pt, etc. are extracted by amalgamation or cyanide process.
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