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Question

Zone refining is a method to obtain ____________


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Solution

Zone refining:

  • Zone Refining is a method used for purifying crystals and impurities in the metal to obtain metals with very high purity i.e. ultra-pure metals.
  • This process is very effective in refining high-purity metals and in the removal of impurities from semiconducting elements such as Silicon Si, Gallium Ga and Germanium Ge.
  • It is based upon the principle that impurities are more soluble in a molten state as compared to the solid-state of metals.

Hence, zone refining is a method to obtain ultra-pure metals.


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