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In Goldschmidt aluminothermic process, thermite contains
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$3$ parts of $\mathrm{Fe}_{2} \mathrm{O}_{3}$ and $1$ part of $\mathrm{Al}$
In Goldschmidt aluminothermic process, thermite contains 3 parts of $\mathrm{Fe}_{2} \mathrm{O}_{3}$ and 1 part of aluminium $(\mathrm{Al})$.
$$
\mathrm{Fe}_{2} \mathrm{O}_{3}+2 \mathrm{Al} \longrightarrow \mathrm{Al}_{2} \mathrm{O}_{3}+2 \mathrm{Fe}+\text { Heat }
$$
$$
\mathrm{Fe}_{2} \mathrm{O}_{3}+2 \mathrm{Al} \longrightarrow \mathrm{Al}_{2} \mathrm{O}_{3}+2 \mathrm{Fe}+\text { Heat }
$$
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