Question

Main source of lead is galena ($PbS$). It is converted to $Pb$ by:
($A$) $PbS\underset{\Delta }{\overset{air}{\to }}PbO+S{O}_2\stackrel{C}{\to }Pb+C{O}_2$

($B$) $PbS\underset{\Delta }{\overset{air}{\to }}PbO+PbS\to Pb+S{O}_2$

Identify the self-reduction process.

• A. ($A$)
• B. ($B$)
• C. Both ($A$) and ($B$)
• D. None of the above

Answer 1

The correct option is B ($B$)

Process ($B$) is the self reduction process.
$2PbS+3O_2\to 2PbO+2S{O}_2$

$PbS+2PbO\to 3Pb+S{O}_2$ (self reduction)
Option B is correct.