
Concept explainers
Interpretation:
Preparation of silicon from silica sand and how silicon is purified for use in semiconductor devices needed to be described and
Concept introduction:
Silicon is generally obtained from silica sand. Silica sand it is
Silica sand is silica oxides so pure silica can be obtained by reduction process. Either by
Convert silica into volatile substance which is fractional distillate and then it is converted back to elemental silicon by reduction.

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Chapter 22 Solutions
Chemistry (7th Edition)
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