Solveeit Logo
Login

Question

Chemistry Question on General Principles and Processes of Isolation of Elements

Extraction of zinc from zinc blende is achieved by

A

roasting followed by self-reduction

B

electrolytic reduction

C

roasting followed by reduction with carbon

D

roasting followed by reduction with another metal

Answer

roasting followed by reduction with carbon

Explanation

Solution

Extraction of Zn from zinc blends is achieved by roasting followed by reduction with carbon. Reactions involved are: 2ZnS+3O2−>[heat]2ZnO+2SO2(Roasting) {2ZnS+3O2->[heat]2ZnO + 2SO2 (Roasting)} ZnO+C(Coke)−>[heat]Zn+CO(Reduction) {ZnO + C(Coke)->[heat]Zn + CO (Re duction)}