The element which could be extracted by electrolytic reduction of its oxide dissolved in a high temperature melt is:
A
Sodium
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B
Potassium
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C
Fluorine
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D
Aluminium
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Solution
The correct option is D Aluminium The element which could be extracted by electrolytic reduction of its oxide dissolved in a high-temperature melt is aluminium.
It is extracted by the electrolysis of alumina by Hall and Heroult's process by using a fused mixture of alumina and cryolite along with minor quantities of aluminium fluoride and fluorspar.