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- Need explanation for: In the Hall -Heroult process, aluminium is formed at the cathode. The cathode is made out of :
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In the Hall -Heroult process, aluminium is formed at the cathode. The cathode is made out of :
- Option 1)
Copper
- Option 2)
Platinum
- Option 3)
Carbon
- Option 4)
Pure aluminium
Answers (3)
Hall and Heroult Process -
Use to extract aluminum. A fuse mixture of alumina (20%), cryolite (60%) and fluorspar (20%) is electrolyzed using carbon electrodes.
- wherein
Cryolite makes Al2O3 conducting, fluorspar decreases the melting point of alumina
As we have learned that in the Hall -Heroult process,cathode is made up of caarbon
Option 1)
Copper
Option 2)Platinum
Option 3)Carbon
Option 4)Pure aluminium
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