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प्रश्न
Along with cryolite and alumina, another substance is added to the electrolyte mixture. Name the substance and give one reason for the addition.
टीपा लिहा
उत्तर
Along with cryolite and alumina, another substance is added to the electrolyte mixture is Fluorspar. Adding fluorspar lowers the fusion temperature of the electrolyte.
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Metallurgy of Aluminium
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 8: Periodic Classification of Elements - Evaluation [पृष्ठ १२३]
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संबंधित प्रश्न
In the aluminothermic process, the role of Al is _____.
Metal A belongs to period 3 and group 13. A in red hot condition reacts with steam to form B. A with strong alkali forms C. Find A, B, and C with reactions.
Name the acid that renders aluminum passive. Why?
Match the following Column A with Column B.
| Column A | Column B | ||
| (a) | Aluminium | 1. | Covalent compound |
| (b) | Sulphuric acid | 2. | Carbonate ore |
| (c) | Calcination | 3. | Hall Heroult’s process |
| (d) | Calcium Chloride | 4. | Contact Process |
| (e) | Carbon tetrachloride | 5. | Electrovalent compound |
State the reasons if:
Zinc and aluminium can be distinguished by heating the metal powder with a concentrated sodium hydroxide solution.
