Which metals are extracted using the self-red | vedclass

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(A) The self-reduction method (also known as auto-reduction) is used for the extraction of metals that have low affinity for oxygen,such as $Cu$,$Hg$,

Vedclass · Accepted Answer

$Cu$ and $Hg$

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(A) The self-reduction method (also known as auto-reduction) is used for the extraction of metals that have low affinity for oxygen,such as $Cu$,$Hg$,and $Pb$. For copper,the reaction is: $2Cu_2S + 3O_2 \rightarrow 2Cu_2O + 2SO_2$ followed by $2Cu_2O + Cu_2S \rightarrow 6Cu + SO_2$. For mercury,the reaction is: $2HgS + 3O_2 \rightarrow 2HgO + 2SO_2$ followed by $2HgO + HgS \rightarrow 3Hg + SO_2$. Therefore,$Cu$ and $Hg$ are extracted using this method.

Which metals are extracted using the self-reduction method?

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