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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

NTA AbhyasNTA Abhyas 2022

Solution:

Elements which are used as semiconductors such as Si, Ge, Ga etc. are refined by this method, which is based on the difference in solubility of impurities in molten and solid state of the metal.