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  4. The process of zone refining is used in the purification of

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Q. The process of zone refining is used in the purification of

KCETKCET 2013General Principles and Processes of Isolation of Elements

Solution:

Zone-refining is a method is obtain metals of very high purity. Metals like $Si, Ge, Ga$ etc., used in semiconductors devices are purified by this method.