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प्रश्न
For cryolite, explain its significance in the extraction of aluminium.
उत्तर
Lowers the fusion temperature from 2050°C to 950°C and enhances conductivity.
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संबंधित प्रश्न
Name the solution used to react with Bauxite as a first step in obtaining pure aluminum oxide, in the Baeyer’s process
Aluminium is a more active metal than iron, but suffers less corrosion. Why?
Explain with reason:
Carbon can reduce lead oxide but not aluminium oxide.
For bauxite, explain its significance in the 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 chemical used for dissolving aluminium oxide. In which state is the chemical used?
Describe the role played in the extraction of aluminum:
Sodium hydroxide
Describe the role played in the extraction of aluminum : Graphite
Name the compound added to pure alumina to lower the fusion temperature during the electrolytic reduction of alumina.
Explain the reason:
Why 'food containing iron salts' should not be cooked in aluminium utensils?
Answer the following question:
Write the chemical formula of one main ore of iron and aluminium.
