Question

Silicon can be obtained from silica using the process of

• A. Oxidation
• B. Reduction
• C. Thermal decomposition
• D. None of the above

Answer 1

Answer: (B), (C)

The correct options are
B Reduction
C Thermal decomposition

Silicon is obtained from silica using carbon by the process of thermal decomposition. In this process the oxygen is removed from the silica, hence it's a reduction process.This process is performed at a very high temperature, around 2350 degree celsius.