Physics · Metallurgy
Which process is widely used for the commercial extraction of aluminium from purified bauxite (alumina)?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Displacement reaction using metallic zinc
- 2Calcination followed by reduction with elemental carbon
- 3Roasting followed by reduction with carbon monoxide
- 4Electrolysis of molten aluminium oxide mixed with cryolite✓
Correct answer
Electrolysis of molten aluminium oxide mixed with cryolite
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