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Considering the importance of sand (SiO2)in the production of silicon which is the chief material in the production of solar cells. Will the silicone produced with this silicon (iv)oxide after treatment with magnessium to remove the oxide be pure enough to be used in the production of the solar cells? Again when is the most appropriate time to add the two "impurities" that are required to obtain the two types of "holes" that must bring bring about the high conductivity of electricity?

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