Advertisements
Advertisements
प्रश्न
Explain why it is preferably to use a number of graphite electrodes as anode instead of a single electrode, during the above electrolysis.
उत्तर
- It is preferable to use multiple graphite electrodes as anodes since the oxygen produced oxidises the anode.
- Using a large number of electrodes allows the process to run continuously for a longer period of time.
APPEARS IN
संबंधित प्रश्न
For the substance given below, describe the role played in the extraction of aluminium.
Graphite
| 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?
Aluminium is extracted from its chief ore, bauxite. The ore is first purified and then the metal is extracted from it by electrolytic reduction.
Write an equation for the reaction which takes place at the anode during the extraction of aluminium by the electrolytic process.
In the Hall's process for extraction of aluminium, Give the formula and purpose of fluorspar and cryolite
Why is food containing iron salts should not be cooked in aluminium utensils?
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. Which particular property of cast iron makes it unsuitable for the construction of bridges?
In Hoope's process, pure aluminium is collected at the ______ of the electrolytic cell.
Name the following:
A metal which is always present in the amalgam.
The chief ore of Aluminium is ______
In Hall and Heroult's process, products liberated at anode and cathode are ______
