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Class 12ChemistryGeneral Principles and Processes of Isolation of ElementsRefining of crude Metal
Easy

$Si$ and $Ge$ used for semiconductors are required to be of high purity and hence purified by:

  • A
    zone-refining
  • B
    electrorefining
  • C
    Van-Arkel's process
  • D
    cupellation process
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Class 12 Questions

Class 12

Chemistry Questions

Chapter

General Principles and Processes of Isolation of Elements

Subtopic

Refining of crude Metal

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