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Electrolytic reduction of alumina to alu...

Electrolytic reduction of alumina to aluminium by Hall-Heroult process is carried out

A

In the presence of NaCI

B

In the presence of fluoride

C

In the presence of cryolite which forms a melt with lower melting tempeature

D

In the presence of cryolite which forms a melt with higher melting temperature

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The correct Answer is:
C
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