Which of the following changes involve more t | vedclass

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(B) The extraction of metals from their ores involves several steps such as concentration,roasting/calcination,reduction,and refining.$A$. $ZnCO_3 \ri

Vedclass · Accepted Answer

$CuFeS_2$ $\rightarrow$ $Cu$ (Pure)

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(B) The extraction of metals from their ores involves several steps such as concentration,roasting/calcination,reduction,and refining.$A$. $ZnCO_3 \rightarrow Zn$ involves calcination followed by reduction ($2$ steps).$B$. $CuFeS_2 \rightarrow Cu$ involves concentration,roasting,smelting,bessemerization,and electrolytic refining (more than $2$ steps).$C$. $PbS \rightarrow Pb$ involves roasting followed by reduction ($2$ steps).Since $CuFeS_2$ extraction involves multiple complex steps including concentration,roasting,smelting,and refining,it clearly involves more than two metallurgical processes.

Which of the following changes involve more than two metallurgical processes?

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