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BITSAT 2015
Exam
BITSAT
Year
2015
Subject
Chemistry
Chapter
General Principles and Processes of Isolation of Metals

BITSAT 2015 · Chemistry · General Principles and Processes of Isolation of Metals

Semiconductor materials like Si and Ge are usually purified by

Semiconductor materials like Si and Ge are usually purified by

Options

  1. Adistillation
  2. Bzone refining
  3. Cliquation
  4. Delectrolytic refining

Correct answer

B. zone refining

Step-by-step solution

Semiconductor materials like Si and Ge are usually purified by zone refining. Zone refining is based on the principle of fractional crystallisation i.e. difference in states of metal, so that the zones of impurities are formed and finally removed.
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