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

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

Jharkhand CECEJharkhand CECE 2008

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.