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प्रश्न
Write the equation for the reaction where the aluminium oxide for the electrolytic extraction of aluminium is obtained by heating aluminium hydroxide.
उत्तर
\[\ce{2Al(OH)3 ->[Heat][1000^\circ C] Al2O3 + 3H2O}\]
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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.
For the substance given below, describe the role played in the extraction of aluminium.
Cryolite
For bauxite, explain its significance in the extraction of aluminium.
Explain the following:
In construction work, why is the alloy of aluminium-duralumin used rather than pure 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 chemicals used for dissolving aluminium oxide. In which state of sub-division is the chemical used?
Name the following :
A compound added to lower the fusion temperature of electrolytic bath in the extracton of aluminium.
Explain why :
In the electrolysis of alumina using the Hall Heroult's Process the electrolyte is covered with powdered coke.
Explain with reason:
A neutral gas other than oxygen is formed at the anode during the electrolysis of fused alumina.
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 ______.
