Industrial Applications of Electrolysis - Extraction of Metals

  1. Diagram below shows the methods of extraction for different metals.
  2. Metals which are less reactive than carbon in reactivity series are extracted from their ore by displacement reaction using carbon.
  3. Copper and mercury can be extracted from their ore by burning directly in air.
  4. Silver (Ag) and gold (Au) need no extraction because they exist as element in nature.
  5. Those metals which are more reactive than carbon are extracted by electrolysis.


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