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Question
The process used for refining of aluminium is known as ______.
Fill in the Blanks
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Solution
The process used for refining of aluminium is known as Hall-Heroult process.
Explanation:
Aluminium is refined by the electrolysis of purified alumina mixed with cryolite and fluorspar to lower its melting point and improve conductivity. This process uses a graphite anode and steel cathode to extract pure aluminium by electrolysis.
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