what is thermite reaction?
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It is a reaction in which reduction of metals like iron is carried out with the help of aluminium to obtain pure metal . It is used in joining railway tracks as it is very exothermic process.
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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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