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

Options

A. `Me_(2)SiCl_(2)`
B. `Me_(3)SiCl`
C. `PhSiCl_(3)`
D. `MeSiCl_(3)`

Answer

B

Explanation

The hydrolysis of `(CH_(3))_(3)SiCl` gives `(CH_(3))_(3)SiOH` which condenses to give a dimer:
`CH_(3)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)(Si)-OH+HO-underset(CH_(3))underset(|)overset(CH_(3))overset(|)(Si)-CH_(3)overset(-H_(2)O)rarr`
`CH_(3)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)(Si)-O-underset(CH_(3))underset(|)overset(CH_(3))overset(|)(Si)-CH_(3)`