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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 cryolite which forms a melt with lower melting temperature

B

in the presence of cryolite which forms a melt with higher melting point

C

in the presence of KOH

D

in the presence of NaCl

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The correct Answer is:
A
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Statement-1:Electrolytic reduction of alumina to aluminium by Hall-Heroult process is carried in the presence of cryolite. Statement-2:Cryolite contains aluminium.

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

Hall-Heroult's process is given by :

The funciton of adding cryolite in the electrolytic reduction of alumina by Hall-Heroult process is to :

MARVEL PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-Test Your Grasp
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