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Class 12ChemistryGeneral Principles and Processes of Isolation of ElementsReduction to free Metal
Medium

$A$ layer of coke is spread over bauxite during the electrolytic reduction of alumina by the Hall-Heroult process. This layer acts as a/an:

  • A
    flux
  • B
    slag to remove impurities
  • C
    reducing agent
  • D
    insulation and does not allow heat to escape
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Class 12 Questions

Class 12

Chemistry Questions

Chapter

General Principles and Processes of Isolation of Elements

Subtopic

Reduction to free Metal

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