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प्रश्न
Name the following: A compound added to lower the fusion temperature of electrolytic bath in the extraction of aluminum
उत्तर
Cryolite (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
Mention one reason for the use of aluminium in thermite welding ?
How is aluminium obtained from pure ore?
In the Hall's process for extraction of aluminium, Give the formula and purpose of fluorspar and cryolite
What is the role of cryolite (NaAlF6) in the electrolytic reduction of alumina in the Hall's process?
An aqueous solution of sodium chloride is not used for electrolytic reduction of sodium metal. Why?
For the substance listed below, explain its role in the extraction of aluminium: Cryolite
Explain the reason:
Why 'food containing iron salts' should not be cooked in aluminium utensils?
Name the following :
The compound formed by the reaction between calcium oxide and silica.
State the relevant reason for the following:
A layer of powered coke is used over the electrolytic mixture in Hall Heroult’s process.
Given below in column A is a schematic diagram of the electrolytic reduction of alumina. Identify the parts labelled as A, B and C with the correct options from the Column B.
| column A | column B | |
 |
1. | Platinum |
| 2. | Anode | |
| 3. | Cathode | |
| 4. | Electrolyte mixture | |
| 5. | Bauxite |
