Advertisements
Advertisements
प्रश्न
The following question relate to the extraction of aluminium by electrolysis.
Name the other aluminium containing compound added to alumina and state the significance.
The following question relate to the extraction of aluminium by electrolysis.
Name the other aluminium containing compound added to alumina.
उत्तर
Cryolite
significance: Cryolite (Na3AlF6) is added along with alumina and fluorspar. It lowers the fusion temperature from 2050°C to 950°C and enhances conductivity.
संबंधित प्रश्न
Aluminium is a more active metal than iron, but suffers less corrosion. Why?
Both brass and bronze contain copper as major constituents. Name other elements in these alloys.
Name the constituents of Duralumin.
Name the following:
The substance added along with aluminium in the Hall-Heroult's process.
How is ore purified (give equations also)
Explain with reason:
A neutral gas other than oxygen is formed at the anode during the electrolysis of fused alumina.
Name the compound formed when: Bauxite reacts with sodium hydroxide.
In Hall and Heroult's process, products liberated at anode and cathode are ______
The compound that is not an ore of aluminum is ______.
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 |
