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+2Mg→Si+2MgO.