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प्रश्न
Name the solution used to react with bauxite as a first step in obtaining pure aluminium oxide, in the Baeyer's process.
उत्तर
Conc. caustic soda
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संबंधित प्रश्न
Explain with reason:
Carbon can reduce lead oxide but not aluminium oxide.
Name the constituents of Bronze.
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.
When bauxite is treated with sodium hydroxide solution, what happens to:
- the aluminium oxide,
- the iron (III) oxide?
Name the following:
The materials used as electrodes in the electrolytic extraction of aluminium.
Give reason for the following:
Extraction of aluminium was very difficult in the beginning.
Explain the reason:
Why 'food containing iron salts' should not be cooked in aluminium utensils?
Name a metal which is found abundantly in the Earth's crust.
Write the balanced chemical equation to show the concentration of ore in Baeyer’s process.
Aluminium hydroxide to alumina
What impurities are present in aluminium ore?
The compound that is not an ore of aluminum is ______.
