Question

WHat do you understand by 'thermite reaction' ?

Answer 1

The thermite reaction is the reaction of metal oxide with the aluminium. The aluminium acts as a reducing agent and the reaction is highly exothermic and hence called a thermite reaction.

The aluminium reduces the oxide of another metal, most of the times, it is iron oxide (FeO) because aluminium is highly reactive. The reaction involved can be shown as:

Fe2O3 + 2Al → 2Fe + Al2O3

Answer 2

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➡The displacement reactions are highly exothermic. The amount of heat is evolved so large that metals are produced in the molten state. In fact, the reaction with iron oxide with aluminium is used to join the railway tracks. This reaction known as thermit reaction.


Fe²O³+2Al------>2Fe+Al²O³


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