The Hall-Héroult process is used for the commercial extraction of which metal?
Correct answer: C. Aluminum
- A. Iron
- B. Copper
- C. Aluminum
- D. Titanium
Explanation
The Hall-Héroult process is the only method used for the large-scale production of aluminum. It involves the electrolysis of alumina (Al₂O₃) dissolved in a molten bath of cryolite (Na₃AlF₆).
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Industrial chemistry applies chemical reactions and material properties to the manufacture of adhesives, dyes and polymers. Coverage includes addition and condensation polymerisation, thermoplastics and thermosetting polymers, the structural basis of colour in dyes, and how adhesive composition enables bonding between surfaces.
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