Q. The method of zone refining of metals is based on the principle of

 2273  233 Jharkhand CECEJharkhand CECE 2008 Report Error

Solution:

The method of zone refining of metals is based on the principle of greater solubility of the impurity in the molten state than in the solid. Elements which are used as semiconductors like Si, Ge, Ga etc are refined by this method.