Electrolytic reduction of alumina to aluminium by Hall-Heroult process is carried out…
Chemistry · JEE Advanced · NTA Exams — General Principles and Processes of Isolation of Elements
Electrolytic reduction of alumina to aluminium by Hall-Heroult process is carried out (2000)
- in the presence of NaCl
- in the presence of fluorite
- in the presence of cryolite which forms a melt with lower melting temperature
- in the presence of cryolite which forms a melt with higher melting temperature
Answer
(C) in the presence of cryolite which forms a melt with lower melting temperature
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