MCQ
In laboratory silicon can be prepared by the reaction
  • A
    By heating carbon in electric furnace
  • B
    By heating potassium with potassium dichromate
  • Silica with magnesium
  • D
    None of these

Answer

Correct option: C.
Silica with magnesium
c
In laboratory, Silicon is prepared by the reaction of Silica with Magnesium.

Reaction: $SiO _2+2 Mg \rightarrow Si +2 MgO$

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