Advertisements
Advertisements
प्रश्न
Write the equation for the reaction where the aluminum oxide for the electrolytic extraction of aluminum is obtained by heating aluminum hydroxide.
उत्तर
APPEARS IN
संबंधित प्रश्न
Aluminium is a more active metal than iron, but suffers less corrosion. Why?
Name the constituents of Solder.
For sodium hydroxide, 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?
Name the following:
The substance added along with aluminium in the Hall-Heroult's process.
In order to obtain one tone of aluminium, the following inputs are required:
4 tones of bauxite, 150 Kg of sodium hydroxide and 600 Kg of graphite.
The aluminium compound in bauxite is aluminium oxide and the main impurity is iron (II) oxide. Aluminium is obtained by the electrolysis of aluminium oxide dissolved in cryolite.
In construction work, why is the alloy of aluminium, duralumin used rather than pure aluminium.
Explain why it is preferably to use a number of graphite electrodes as anode instead of a single electrode, during the above electrolysis.
During the concentration of bauxite ore, aluminium goes in ______ part because of its ______ nature.
Name the alloy used for the following purpose.
Aircraft
The compound that is not an ore of aluminum is ______.
