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Question

Question: In laboratory silicon can be prepared by the reaction....

In laboratory silicon can be prepared by the reaction.

A

Silica with magnesium

B

By heating carbon in electric furnace

C

By heating potassium fluosilicate with potassium

D

None of these

Answer

Silica with magnesium

Explanation

Solution

SiO2+2MgSi+2MgO\mathrm { SiO } _ { 2 } + 2 \mathrm { Mg } \rightarrow \mathrm { Si } + 2 \mathrm { MgO }.