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In the alumino-thermite process, aluminium acts as
In the alumino-thermite process, aluminium acts as
Updated On: Jun 14, 2022
- an oxidising agent
- a flux
- a reducing agent
- a solder
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The Correct Option is C
Solution and Explanation
In thermite welding, Al acts as a reducing agent
$2Al+Fe_2O_3\rightarrow Al_2O_3+2Fe+Heat$
$2Al+Fe_2O_3\rightarrow Al_2O_3+2Fe+Heat$
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Concepts Used:
General Principles and Processes of Isolation of Elements
What are Ores and Minerals?
Minerals are the naturally occurring, homogeneous inorganic solid substances. They are having a definite chemical composition and crystalline structure, hardness and color. For example, copper pyrite, calamine, etc.
Impurities in an ore are called gauge. The removal of a gauge from the ore is called concentration ore.
Several steps are involved in the extraction of pure metal from ores. Major steps are as follows β
- Concentration of the ore
- Isolation of the metal from its concentrated ore
- Purification of the metal
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