Question
Question: Silver obtained from argentiferrous lead containing lead impurity is purified by....
Silver obtained from argentiferrous lead containing lead impurity is purified by.
A
Distillation
B
Froth floatation
C
Cupellation
D
Treatment of KCN
Answer
Cupellation
Explanation
Solution
Cupellation : If metal possess the impurity of another metal which forms volatile oxide. Then cupellation method is used.