The extraction principle used in extraction of a metal 'M' can be represented as follows

$\begin{cases}\text{MS} + {2 \text{O}_{2} & \to & {MSO}_{4} \\ {MSO}_{4} + \text{MS} & \to & 2 \text{M} + 2 {SO}_{2}\end{cases}$

The metal 'M' is

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The extraction principle used in extraction of a metal 'M' can be represented as follows cases MS + 2 O_ 2 & → & MSO _ 4 MSO _ 4 + MS & → & 2 M + 2 SO _ 2 cases The metal 'M' is

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Correct answer: B. Pb

It is a case of self reduction.

The concentrated galena (PbS) is partially oxidised by adjusting the air supply.

\text{PbS} + 2 {O}_{2} \to {PbSO}_{4}

The temperature is raised, air supply reduced and fresh galena (PbS) added.

\text{PbS} + {PbSO}_{4} \to 2 \text{Pb} + 2 {SO}_{2} ↑

The extraction principle used in extraction of a metal 'M' can be...

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