For each of the substance listed below, describe the role played in the extraction of aluminium. (1) Cryolite (2) Sodium hydroxide (3) Graphite.

Answer the following questions with respect to the electrolytic process in the extraction of aluminium: For the substance listed below explain the role played in the extraction of aluminium. Sodium hydroxide

Answer the following questions with respect to the electrolytic process in the extraction of aluminium: For the substance listed below explain the role played in the extraction of aluminium. Cryolite

Answer the following questions with respect to the electrolytic process in the extraction of aluminium: For the substance listed below explain the role played in the extraction of aluminium. Graphite

Describe the role of the following: Cryolite in the extraction of aluminium from pure alumina.

The following questions related to the extraction of aluminium by electrolysis : What is the role of graphite?

What is the role of CO_(2) in the extractive metallurgy of aluminium from its ore ?

The following is an extract from 'Metals in the Service of Man, Alexander and Street/Pelican 1976. 'Alumina (aluminium oxide) has a very high melting point of over 2000^@ C so that it cannot readily be liquefied. However, conversion of alumina to aluminium and oxygen, by electrolysis, can occur when it is dissolved in some other substance : The aluminium oxide for the electrolytic extraction of aluminium is obtained by heating aluminium hydroxide. Write the equation for this reaction.

Describe the role of the following: Cryolite in the metallurgy of Aluminium.

What is the role of cryolite in the extraction of pure aluminium from bauxite by electrolytic process?