ReasoningModerate1 mark
7(b)
Answer the following questions with respect to the electrolytic process in the extraction of aluminum:
Explain why powdered coke is sprinkled over the electrolytic mixture.
Topic: Electrolysis, electrolytes and electrode processes
Previous-year question practice database
Answer
Exam answer
Powdered coke reduces heat loss by radiation and protects the carbon anodes from oxidation.
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