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प्रश्न
| Aluminium is extracted from its chief ore, bauxite. The ore is first purified and then the metal is extracted from it by electrolytic reduction. |
Name a chemical used for dissolving aluminium oxide. In which state is the chemical used?
उत्तर
Fluorspar and cryolite are used for dissolving \[\ce{Al2O3}\]. This chemical is used in the molten state.
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संबंधित प्रश्न
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.
Name the solution used to react with Bauxite as a first step in obtaining pure aluminum oxide, in the Baeyer’s process
For the substance given below, describe the role played in the extraction of aluminium.
Cryolite
For cryolite, explain its significance in the extraction of aluminium.
Name the following:
The materials used as electrodes in the electrolytic extraction of aluminium.
For the substance listed below, explain its role in the extraction of aluminium: Graphite
Answer the following question :
Name a metal which is found abundantly in earth's crust.
Explain why it is preferably to use a number of graphite electrodes as anode instead of a single electrode, during the above electrolysis.
Name the alloy used for the following purpose.
Surgical instruments
The compound that is not a constituent of the electrolytic mixture used in Hall-Heroult's process is ______.
