MetallurgyHard

Question

Tin and zinc can be refined by : 

Options

A.cupellation
B.liquation
C.poling
D.bessemerisation

Solution

This process is used for the purification of the metal, which itself is readily fusible, but the impurities present in it are not, i.e., the impurities are infusible. This process is used for the purification of Sn and Zn, and for removing Pb from Zn-Ag alloy, which is obtained at the end of Parke′s process and contains Pb as impurity.

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