Question

Which of the following diagrams us correctly related to different steps involved in the extraction of `Zn` from zinc blende ore?
A.
B.
C. Both`(a)`and`(b)`
D. None of these

Answer 1

Correct Answer - C
• Concentration `rarr` The ore is concentated forst by gravity method and then by froth floatation process.
• Rasting `rarr` Concentated ore is then roasted at `900^(@)-1000^(@)C` to convert `ZnS` and `ZnSO_(4)`to `ZnO`.
• Readuction of ckoe `rarr` The oxide `ZnO` is reduced with coke at about `1500^(@)C` to obtain metallic zinc.
• Electrolytic refining `rarr` Pure zinc is obtained by electrolysis zinc in presence of acidified `ZnSO_(4)` as electrolyte.