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