Question

What is the appropriate order of processes for the extraction of lead from Galena?
A) Froth flotation B) Calcination C) Roasting D) Self Reduction E) Electrolytic Reduction F) Smelting

• A. $C\to B\to D\to E$
• B. $A\to C\to D$
• C. $A\to C\to E$
• D. $A\to C\to F$

Answer 1

The correct option is B $A\to C\to D$

Galena (PbS) is a sulphide ore. It is first concentrated by froth flotation process. After partial roasting, self reduction is carried out.