Question

Which of the following compound forms silicones on hydrolysis?

• A. $(C{H}_3{)}_{2}SiC{l}_2$
• B. $(Si{H}_3{)}_{3}N$
• C. $SiC{l}_4$
• D. All

Answer 1

Answer: (A)

$(C{H}_3{)}_{2}SiC{l}_2$

Silicones are a group of organosilicon polymers, which have $(-R_{2}SiO-)$ as a repeating unit. The starting materials for the manufacture of silicones are alkyl or aryl substituted silicon chlorides, $R_{n}SiC{l}_{(4–n)}$, where R is alkyl or aryl group. On hydrolysis of this alkyl or aryl substituted silicon chlorides the silicones are formed.

Among given options, option A is the only alkyl substituted silicone chloride and hence it is correct answer.