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प्रश्न
Describe the role played in the extraction of aluminum:
Cryolite
उत्तर
In the extraction of aluminium, the given compounds play the following roles:
Cryolite: It lowers the fusion temperature from 2050°C to 950°C and enhances conductivity.
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संबंधित प्रश्न
For bauxite, explain its significance in the extraction of aluminium.
For the substance listed below, explain its role in the extraction of aluminium: Cryolite
For the substance listed below, explain its role in the extraction of aluminium: Graphite
In order to obtain one tone of aluminium, the following inputs are required:
4 tones of bauxite, 150 Kg of sodium hydroxide and 600 Kg of graphite.
The aluminium compound in bauxite is aluminium oxide and the main impurity is iron (II) oxide. Aluminium is obtained by the electrolysis of aluminium oxide dissolved in cryolite.
(i) Name the process used for purification of bauxite.
(ii) Write the equation to show the action of heat on aluminium hydroxide.
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?
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 an equation for the reaction which takes place at the anode during the extraction of aluminium by the electrolytic process.
Name the following :
A compound added to lower the fusion temperature of electrolytic bath in the extracton of aluminium.
Write the balanced chemical equation to show the concentration of ore in Baeyer’s process.
Aluminium hydroxide to alumina
State true or false.
Bauxite is the main ore of aluminium.
The compound that is not an ore of aluminum is ______.
