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प्रश्न
In Hoope's process, pure aluminium is collected at the ______ of the electrolytic cell.
विकल्प
top
bottom
उत्तर
In Hoope's process, pure aluminium is collected at the top of the electrolytic cell.
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संबंधित प्रश्न
Name the following: A compound added to lower the fusion temperature of electrolytic bath in the extraction of aluminum
Give the chemical names and formulae of the main ores of zinc.
In order to obtain 1 tonne of aluminium, the following inputs are required: 4 tonnes 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 (III) oxide. Aluminium is obtained by the electrolysis of aluminium oxide dissolved in cryolite.
- Name the process used for the purification of bauxite.
- Write the equation for the action of heat on aluminium hydroxide.
Name the following:
The substance added along with aluminium in the Hall-Heroult's process.
Give reason for the following:
Aluminium oxide cannot be reduced by carbon.
The following question relate to the extraction of aluminium by electrolysis.
Name the other aluminium containing compound added to alumina and state the significance.
Explain why :
In the electrolysis of alumina using the Hall Heroult's Process the electrolyte is covered with powdered coke.
Write the equation for the reaction that occurs at the cathode during the extraction by aluminium by electrolysis.
Name the alloy used for the following purpose.
Making parts of watches
Write the balanced chemical equation to show the concentration of ore in Baeyer’s process.
Aluminium hydroxide to alumina
