Chemistry - Metallurgy Question with Solution | TestHub
ChemistryMetallurgyExtraction of MetalsMedium2 minQB
ChemistryMediummultiple choice
In the given flow diagram of extraction of a particular metal, which of the following process(es) is/are used. Red bauxite Concentration of ore Oxide ore Impure metal Pure metal
Options:(select one or more)
Answer:
B, D
Solution:
Red bauxite is first concentrated by Bayer's process to obtain pure alumina (Al₂O₃).
Alumina is then reduced to impure aluminum by the Hall–Heroult process.
The impure aluminum is finally purified by the Hoopes process (electrolytic refining).
Serpeck's processis used for siliceous bauxite, and Dow's process is used for magnesium extraction, so they are not involved here.
Correct Answer: (B) Hoopes Process and (D) Hall–Heroult Process
Stream:JEESubject:ChemistryTopic:MetallurgySubtopic:Extraction of Metals
⏱ 2mℹ️ Source: QB
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