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प्रश्न
For the substance listed below, explain its role in the extraction of aluminium: Bauxite
उत्तर
Bauxite: It is the principle ore from which aluminium is extracted.
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संबंधित प्रश्न
Aluminium is a more active metal than iron, but suffers less corrosion. Why?
The reason for using Aluminium in the alloy duralumin is ______.
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.
Answer the following question :
Name a metal which is found abundantly in earth's crust.
In Hoope's process, pure aluminium is collected at the ______ of the electrolytic cell.
Fused alumina is reduced to aluminium by electrolytic reduction, since ______.
Name the compound formed when: Bauxite reacts with sodium hydroxide.
State the relevant reason for the following:
Graphite anodes are continuously replaced during the electrolysis of alumina.
The compound that is not an ore of aluminum is ______.
