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(D) The reaction of metal oxides with aluminum is highly exothermic,releasing a large amount of energy. This process is known as the thermite reaction

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Thermite welding

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(D) The reaction of metal oxides with aluminum is highly exothermic,releasing a large amount of energy. This process is known as the thermite reaction. $Fe_{2}O_{3} + 2Al ightarrow 2Fe + Al_{2}O_{3} + 	ext{Heat}$. This heat is sufficient to melt the metal,making it useful for joining railway tracks,which is known as thermite welding.

$A$ large amount of energy is released during the formation of $Al_{2}O_{3}$,which is used in which of the following?

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