In the alumino-thermite process,Al metal acts | vedclass

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(B) Metal oxides having very high melting points,e.g.,oxides of $Cr$,$Mn$,$Ti$,$Mo$,$Fe$,etc.,are difficult to reduce by carbon reduction. These can b

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Reducing agent

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(B) Metal oxides having very high melting points,e.g.,oxides of $Cr$,$Mn$,$Ti$,$Mo$,$Fe$,etc.,are difficult to reduce by carbon reduction. These can be reduced by thermite reduction using $Al$ powder as a reducing agent.Alumino-thermite process: Certain oxides of $Mn$ and $Cr$ do not reduce by carbon due to their very high melting points. They are reduced by $Al$.$Cr_2O_3 + 2 Al \rightarrow 2 Cr + Al_2O_3$$3 Mn_3O_4 + 8 Al \rightarrow 9 Mn + 4 Al_2O_3$In these reactions,$Al$ undergoes oxidation while reducing the metal oxide to metal. Thus,$Al$ acts as a reducing agent.

In the alumino-thermite process,$Al$ metal acts as

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