Question
Chemistry Question on General Principles and Processes of Isolation of Elements
Electrolytic reduction of alumina to aluminium by Hall-Heroult process is carried out
A
in the presence of NaCI
B
in the presence of fluorite
C
in the presence of cryolite which forms a melt with lower melting temperature
D
in the presence of cryolite whic|i forms a melt with higher melting temperature
Answer
in the presence of cryolite which forms a melt with lower melting temperature
Explanation
Solution
Cryolite is added to alumina in order to lower the melting point.