Question

What happens when silicon is heated with methyl chloride in presence of copper as a catalyst at 570 K?

• A. Methyl substituted dichlorosilanes are formed
• B. Only $M{e}_{4}Si$ is formed
• C. Polymerised chains of $(C{H}_3{)}_{3}SiCl$ are formed
• D. Silicones are formed

Answer 1

The correct option is A Methyl substituted dichlorosilanes are formed

Heating of Silicon with methyl chloride at high temperature in the Presence of copper produces dimethylchlorosilanes.
$C{H}_{3}Cl+Si\underset{570K}{\overset{\text{Cu Powder}}{\to }}(C{H}_3{)}_{2}SiC{l}_2$
Hence, the correct answer is option A.