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Question

The method used for the purification of Indium is:

A
Van Arkel method
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B
Vapour phase refining
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C
Zone refining
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D
Liquation
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Solution

The correct option is C Zone refining
Ga, In, Si, Ge are refined by zone refining or vacuum refining. This method is very useful for producing semiconductor and other metals of very high purity.

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