Ultra pure silicon can be obtained by
This question was previously asked in
Shift 21/05/2023 3:30 PM - 6:30 PM
A
Distillation
B
Electrolytic refining
C
Vapour phase refining
D
Zone refining
Correct Answer
Zone refining
Detailed Explanation
Ultra-pure silicon, used in semiconductor industries, is obtained primarily through Zone Refining In this method, impurities are gradually moved along a rod of silicon by passing a molten zone through the material, resulting in a higher concentration of impurities at one end and a purer form of silicon at the other. This process is repeated several times to attain high purity levels.
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