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

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

The metal 'M' is

Question

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

TestHub · Accepted Answer

It is a case of self reduction.

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

$PbS + 2 O_{2} \to {PbSO}_{4}$

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

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

Chemistry - General Principles and Processes of Isolation of Metals Question with Solution | TestHub

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