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प्रश्न
Give reason for the following:
Extraction of aluminium was very difficult in the beginning.
उत्तर
Extraction of aluminium was very difficult in the beginning because it was very expensive.
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संबंधित प्रश्न
Explain why In the electrolysis of alumina using the Hall Heroult's Process the electrolyte is covered with powdered coke
Name the following:
The materials used as electrodes in the electrolytic 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 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.
Correct the following statement :
Haematite is the chief ore of aluminium.
The following question relate to the extraction of aluminium by electrolysis.
Name the other aluminium containing compound added to alumina and state the significance.
Describe the role played in the extraction of aluminum:
Cryolite
Explain why :
Iron sheets are coated with zinc during galvanization.
Name the compound formed when: Bauxite reacts with sodium hydroxide.
The compound that is not a constituent of the electrolytic mixture used in Hall-Heroult's process is ______.
