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प्रश्न
Answer the following question:
Write the chemical formula of one main ore of iron and aluminium.
उत्तर
Ores of iron
|
Name |
Chemical name |
Formula |
|
Red Haematite |
Anhydrous ferric oxide |
Fe2O3 |
|
Brown Haematite |
Hydrated ferric oxide |
2Fe2O3.3H2O |
Ores of aluminum
|
Name |
Chemical name |
Formula |
|
Bauxite |
Hydrated aluminium oxide |
Al3O32H2O |
|
Cryolite |
Sodium aluminium oxide |
Na3AlF6 |
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संबंधित प्रश्न
| 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 chemical used for dissolving aluminium oxide. In which state is the chemical used?
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Write balanced equation for the following reaction:
Aluminium powder is warmed with hot and concentrated caustic soda solution.
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.
Name the following :
A compound added to lower the fusion temperature of electrolytic bath in the extracton of aluminium.
Describe the role played in the extraction of aluminum : Graphite
Fused alumina is reduced to aluminium by electrolytic reduction, since ______.
In Hall and Heroult's process, products liberated at anode and cathode are ______
What impurities are present in aluminium ore?
