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प्रश्न
Name the alloy used for the following purpose.
Aircraft
उत्तर
Duralumin and magnalium
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संबंधित प्रश्न
Aluminium is said to be more reactive than iron, towards oxygen (or air) yet iron undergoes corrosion to a greater extent than aluminum. Explain.
Give reason for the following:
Extraction of aluminium was very difficult in the beginning.
How is ore purified (give equations also)
How is aluminium obtained from pure ore?
Name the compound added to pure alumina to lower the fusion temperature during the electrolytic reduction of alumina.
During the concentration of bauxite ore, aluminium goes in ______ part because of its ______ nature.
Explain with reason:
A neutral gas other than oxygen is formed at the anode during the electrolysis of fused alumina.
Write the balanced chemical equation to show the concentration of ore in Baeyer’s process.
Aluminium hydroxide to alumina
The following sketch illustrates the process of conversion of Alumina to Aluminium:
- Name the constituent of the electrolyte mixture which has a divalent metal in it.
- Name the powdered substances ‘X’ sprinkled on the surface of the electrolyte mixture.
- What is the name of the process?
- Write the reactions taking place at the electrodes ‘Y’ (anode) and ‘Z’ (cathode), respectively.
The compound that is not an ore of aluminum is ______.
