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प्रश्न
what is the function of cryolite in the extraction of aluminium, other than acting as a solvent for bauxite?
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उत्तर
Cryolite is used in the electrolysis of alumina. The function of cryolite is to
(i) Reduce melting point of alumina
(ii) Make molten alumina a good conductor of electricity.
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संबंधित प्रश्न
An element L consists of molecules.
When L is heated with iron metal, it forms a compound, FeL. What chemical term would you use to describe the change undergone by L?
Write a balanced chemical equation for each of the following reactions :
(i) Reduction of copper (II) oxide by hydrogen
Give reason for the following:
Carbon anodes are used in the electrolytic extraction of aluminium.
Give equation for the following conversion:Aluminium to sodium aluminate.
Name oxide of one metal which is reduced by (give equation): Reduction with carbon
What metallic property is shown by the non-metal graphite?
Answer the following question :
Name the process used for the enrichment of sulphide ore.
Name two metallic oxides which cannot be reduced by carbon, carbon monoxide or hydrogen.
Write a balanced equation for the reduction of copper (ll) oxide by hydrogen.
Give the equations for the reduction of copper oxide.
