11 grade chemistry others
Cupellation process is used in the metallurgy of:(A) Copper(B) Silver(C) Aluminium(D) Iron
Cupellation process is used in the metallurgy of:(A) Copper(B) Silver(C) Aluminium(D) Iron
1 Answer
Askiitians Tutor Team
The cupellation process is primarily used in the metallurgy of silver. It is a refining technique that involves the separation of silver from other metals, such as lead, that may be present in the ore or alloy. The process takes advantage of the fact that silver has a higher affinity for oxygen than most other metals. During cupellation, the silver alloy is heated in a cupel, which is a shallow, porous dish made of bone ash or a similar material. As the temperature increases, lead and other impurities oxidize and are absorbed into the cupel, while the silver remains unreactive and is left behind in a purer form. This technique has been used for centuries to extract and refine silver.
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