Carbon reduction is not used to obtain Cr and | vedclass

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Question

(C) Carbon reduction is generally used for the extraction of metals like $Fe$,$Zn$,etc. However,for metals like $Cr$ and $Mn$,carbon reduction is not

Vedclass · Accepted Answer

Interstitial compounds are formed by $Cr$ and $Mn$ with carbon at high temperature

Vedclass · Answer

(C) Carbon reduction is generally used for the extraction of metals like $Fe$,$Zn$,etc. However,for metals like $Cr$ and $Mn$,carbon reduction is not preferred because these metals have a high affinity for carbon at high temperatures. At the high temperatures required for the reduction process,$Cr$ and $Mn$ react with carbon to form stable interstitial carbides (e.g.,$Cr_3C_2$,$Mn_7C_3$). These carbides contaminate the metal and make the extraction process inefficient and the product impure.

Carbon reduction is not used to obtain $Cr$ and $Mn$ because

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