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

Question

The extraction principle used in extraction of a metal 'M' can be represented as follows MS +2 O 2 arrow MSO 4 MSO 4+ MS arrow 2 M +2 SO 2 The metal 'M' is (A) Mg (B) Pb (C) Sn (D) Fe

Tardigrade Admin · 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} ↑

Q. The extraction principle used in extraction of a metal ' $M$ ' can be represented as follows
$MS + 2 O_{2} \to MS O_{4}$
$MS O_{4} + MS \to 2 M + 2 S O_{2}$
The metal ' $M$ ' is

$M g$

$P b$

$S n$

$F e$

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.
$PbS + PbSO_{4} \to 2 Pb + 2 SO_{2} ↑$

Q. The extraction principle used in extraction of a metal 'M' can be represented as follows MS+2O2​→MSO4​ MSO4​+MS→2M+2SO2​ The metal 'M' is

Mg

Pb

Sn

Fe