Self-reduction process is used in the extract | vedclass

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(D) Self-reduction,also known as auto-reduction,is a process where the metal sulfide ore is partially roasted to form its oxide,which then reacts with

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Lead

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(D) Self-reduction,also known as auto-reduction,is a process where the metal sulfide ore is partially roasted to form its oxide,which then reacts with the remaining sulfide to produce the metal without the need for an external reducing agent.This process is commonly used for metals like $Cu$,$Pb$,and $Hg$.For example,in the extraction of lead $(Pb)$ from galena $(PbS)$:$2PbS + 3O_2 \rightarrow 2PbO + 2SO_2$$2PbO + PbS \rightarrow 3Pb + SO_2$Therefore,the correct option is $D$.

Self-reduction process is used in the extraction of $-$

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