In laboratory, silicon can be prepared

By heating carbon in electric furnace

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By heating potassium with potassium dichromate

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Silica with magnesium

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None of these

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Solution

The correct option is C
Silica with magnesium

In a laboratory, silicon can be prepared by the reaction of Silica with magnesium.Silica is an oxide of silicon with the chemical formula $S i O_{2}$ .

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