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ICSE Class 10 Chemistry 2023 Paper
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The following sketch illustrates the process of conversion of Alumina to Aluminum : 
Study the diagram and answer the following :
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Question : 18 of 88
Marks:
+1,
-0
Name the powdered substance ' ' sprinkled on the surface of the electrolyte mixture.
Solution:
The powdered substance ' ' is coke. It reduces heat loss by radiation and prevents the burning of anode.
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