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प्रश्न
The following question relate to the extraction of aluminium by electrolysis.
Explain why is it necessary to renew the anode periodically.
उत्तर
Extraction of aluminium:
It is necessary to renew the anode periodically as it gets oxidised by the oxygen evolved at the anode.
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संबंधित प्रश्न
Name the solution used to react with Bauxite as a first step in obtaining pure aluminum oxide, in the Baeyer’s process
For cryolite, explain its significance in the extraction of aluminium.
| 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?
How is ore purified (give equations also)
For the substance listed below, explain its role in the extraction of aluminium: Bauxite
Aluminium is extracted from its chief ore bauxite. The ore is first purified and then the metal is extracted from it by electrolytic reduction.
Write three balanced equations for the purification of bauxite by Hall's process.
Describe the role played in the extraction of aluminum:
Sodium hydroxide
Write the equation for the reaction that occurs at the cathode during the extraction by aluminium by electrolysis.
In Hoope's process, pure aluminium is collected at the ______ of the electrolytic cell.
The chief ore of Aluminium is ______
