A) poling
B) cupel lation
C) distillation
D) levigation
Correct Answer: B
Solution :
Lead extracted from argentiferrous galelens contains small quantities of silver. Recovery of silver from argentiferrous. lead is an economical proposition and is carried out by following three processes: (1) Parkes process, (2) Pattinsons process, (3) Cupellation process.
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