Question

Among the following substituted silanes, the one which will give rise to cross-linked silicon polymer on hydrolysis is:

• A. $R_{3}SiCl$
• B. $R_{4}Si$
• C. $RSiC{l}_3$
• D. $R_{2}SiC{l}_2$

Answer 1

Answer: (C)

$RSiC{l}_3$

Among the following substituted silanes, the one which will give rise to cross-linked silicone polymer on hydrolysis is trichloroalkylsilane $RSiC{l}_3$.

On hydrolysis, $RSiC{l}_3$ will give $RSi(OH{)}_3$ which will polymerize to cross-linked silicone polymer.

$RSiC{l}_3\underset{-3HCl}{\overset{3H_{2}O}{\to }}RSi(OH{)}_3\stackrel{\text{polymerisation}}{\to }$ cross-linked silicone polymer.