Question

What is Cupellation​

Answer 1

$\huge\underline\blue{\sf Cupellation}$

This process is used to purify silver containing the Impurities of Pb

Impure metal + O2→Impurity+O2

Answer 2

Explanation:

Cupellation is a refining process in metallurgy where ores or alloyed metals are treated under very high temperatures and have controlled operations to separate noble metals, like gold and silver, from base metals, like lead, copper, zinc, arsenic, antimony, or bismuth, present in the ore.