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# Silver containing lead as an impurity is removed by

$(a)\;\text{Poling} \\(b)\;\text{Cupellation } \\(c)\;\text{Lavigation} \\ (d)\;\text{Distillation}$
Can you answer this question?

Silver containing lead as an impurity is removed by Cupellation.
Hence b is the correct answer.
answered Mar 18, 2014 by