Which of these is not a monomer for a high molecular mass silicone...

Which of these is not a monomer for a high molecular mass silicone polymer?

Options

A $\mathrm{MeSiCl}_3$
B $\mathrm{Me}_2 \mathrm{SiCl}_2$
C $\mathrm{Me}_3 \mathrm{SiCl}$
D $\mathrm{PhSiCl}_3$

Correct answer

C. $\mathrm{Me}_3 \mathrm{SiCl}$

Step-by-step solution

\mathrm{Me}_3 \mathrm{SiCl}

is not a monomer for a high molecular mass silicone polymer because it generates

\mathrm{Me}_3 \mathrm{SiOH}

when subjected to hydrolysis which contains only one reacting site. Hence, the polymerisation reaction stops just after first step. Which of these is not a monomer for a high molecular mass silicone polymer?

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