how can the metals of top most serves be extracted from their ores ? explain the process in which elements deposited at cathode and anode
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The metals at the top of the reactivity series can be extracted from their ores by electrolytic reduction.
For example, sodium, magnesium and calcium are obtained by the electrolysis of their molten chlorides.
The metal is deposited at the cathode, whereas, chlorine is liberated at the anode.
The reaction taking place at the cathode and anode are as follows:
Cathode: M+ + e- → M
Anode: 2Cl- → Cl2 + 2e-
where M is the metal.
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