Question

What is thermit reaction write one application of it

Answer 1

Thermite reaction is the reaction in which 3 parts of iron oxide (Fe3O4) and one part of aluminium is taken and ignited by burning magnesium and barium peroxide. Aluminium is a reducing agent so it reduces iron oxide to molten iron. The iron obtained is molten because temperature reaches 3000C. This molten iron is used to join broken parts of metals like broken rails.

Reaction is:

Fe2O3 + 2Al -------> 2Fe + Al2O3

This reaction proves the reducing property of aluminium.

Answer 2

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The reaction of iron oxide with aluminum is known as thermit reaction. It is used to join railway tracks or cracked machine parts.

Fe2O3 + 2Al -->2Fe + Al2O3 + Heat

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