MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryMetallurgyVan-Arkel process

Ultrapure silicon, used to make semiconductors, is obtained by the

A.cupellation process

B.Mond process

C.zone-refining process✓ Correct

D.cyanide process

Explanation

Zone refining is the process from which we can get ultra-pure silicon. The difference in solubility of METALLURGY 34 impurities in the molten and solid-state of the metal is the principle of the zone refining. We can get ultra- pure elements by this method. Many elements are refined by this method like germanium, silicon, gallium, arsenic, and indium.

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