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In the extraction of Ag Zn is removed fr...

In the extraction of Ag Zn is removed from (Zn-Ag) alloy through

A

cupellation

B

fractional crystallisation

C

distillation

D

electrolytic refining

Text Solution

Verified by Experts

`(c)` the extraction of Ag using (Zn-Ag) alloy is called Parke's process. As zinc is volatile at `920^(@)` while Ag is not. Thus on heating (Zn+Ag) alloy zinc vaporises while Ag remains at the bottom of the vessel. Hence Zn is removed from (Zn-Ag) alloy through distillation.
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