Class 12 Exam > Class 12 Questions > Extraction process of Bauxite is known asa)Cy...
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Extraction process of Bauxite is known as
- a)Cynanide process
- b)Hall – Heroult process
- c)Van – Arkel – de Boer process
- d)Mond’s process
Correct answer is option 'B'. Can you explain this answer?
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Extraction process of Bauxite is known asa)Cynanide processb)Hall R...
Hall – Heroult process of extraction of Al from Bauxite.
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Extraction process of Bauxite is known asa)Cynanide processb)Hall R...
The aluminum is produced extracting it from the aluminum oxide (Al2O3), called also alumina, through an electrolysis process driven by electrical current. The process uses as electrolyte a molten salts called Cryolite (Na3AlF6) capable of dissolve the alumina. Carbon anodes are immersed into the electrolyte (usually referred as the "bath") carrying electrical current which then flows into the molten cryolite containing dissolved alumina. As a result, the chemical bond between aluminum and oxygen in the alumina is broken, the aluminum is deposited in the bottom of the cell, where a molten aluminum deposit is found, while the oxygen reacts with the carbon of the anodes producing carbon dioxide (CO2) bubbles. The alumina reduction process is described by the following reaction:
2Al2O3+3O gives 4Al+3Co2
Once passed through the bath, the electrical current flows into the molten aluminum deposit and is then collected by the bottom of the pot, usually called "cathode".
2Al2O3+3O gives 4Al+3Co2
Once passed through the bath, the electrical current flows into the molten aluminum deposit and is then collected by the bottom of the pot, usually called "cathode".
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Extraction process of Bauxite is known asa)Cynanide processb)Hall R...
Heroult process
c)Bayer process
d)Froth flotation process
c) Bayer process
c)Bayer process
d)Froth flotation process
c) Bayer process
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Extraction process of Bauxite is known asa)Cynanide processb)Hall – Heroult processc)Van – Arkel – de Boer processd)Mond’s processCorrect answer is option 'B'. Can you explain this answer?
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