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प्रश्न
Answer the following questions with respect to the electrolytic process in the extraction of aluminum:
Identify the components of the electrolyte other than pure alumina and the role played by each
उत्तर
Components of electrolyte: Cryolite and fluorspar
Role played by each electrolyte is given below:
- Cryolite lowers the fusion temperature from 2050°C to 950°C and enhances conductivity
- Fluorspar and cryolite act as a solvent for the electrolytic mixture and increase conductivity.
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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.
Aluminium is a more active metal than iron, but suffers less corrosion. Why?
Name the constituents of Brass.
For bauxite, explain its significance in the extraction of aluminium.
Name the following:
The materials used as electrodes in the electrolytic extraction of aluminium.
Aluminium is a more active metal than iron, but suffers less corrosion. Why?
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 three balanced equations for the purification of bauxite by Hall's process.
In Hoope's process, pure aluminium is collected at the ______ of the electrolytic cell.
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
