How are metals that are high in reactivity extracted ? Please don't tell me refining.
Answers
Answer:
Metals of high reactivity; such as sodium, calcium, magnesium, aluminium, etc. are extracted from their ores by electrolytic reduction. These metals cannot be reduced using carbon because carbon is less reactive than them. Electrolytic Reduction: Electric current is passed through the molten state of metal ores.
Answer:
Metals of high reactivity; such as sodium, calcium, magnesium, aluminium, etc. are extracted from their ores by electrolytic reduction. These metals cannot be reduced using carbon because carbon is less reactive than them.
Electrolytic Reduction: Electric current is passed through the molten state of metal ores. Metal; being positively charged; is deposited over the cathode.
Example: When electric current is passed through molten state or solution of sodium chloride, sodium metal deposited over cathode.
Na+ + e− ⇨ Na
2Cl− − e− ⇨ Cl2
2NaCl ⇨ 2Na + Cl2
Metals obtained from the process of electrolytic reduction are pure in form.