thermite can be produced from aluminum and iron oxide according to redox reaction.
Redox reaction is defined as the the reaction in which one substance get oxidised and other one is reduced. In other words, Oxidation reduction reaction is called redox reaction.
Oxidation is termed as gain of electron and Reduction is termed as lose of electron.
Thermite is a mixture of an oxide of one metal and a powder of another metal.
Aluminium is usually used as a metal that basically decreases the oxide of the metal.
The thermite contains a mass ratio of ferric oxide and aluminium of 3:1.
It is used to weld broken iron pieces thermally. The reduction of aluminium ferric oxide is extremely exothermic, so the iron produced would be in the molten state.
Fe2O3+2Al→Al2O3+2Fe+heat
Thus, redox reaction of aluminum and ferrous oxide produce thermite.
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