The repeating structural unit of silicone is

Options

A. `SiO_(2)`
B. `overset(R )overset(|)underset(R )underset(|)(S)i-O^(-)`
C. `overset(R )overset(|)(O)-overset(|)underset(R )underset(|)(S)i-O^(-)`
D. `-overset(|)underset(|)(S)i-O-O-R`

Answer

B

Explanation

`R_(2)SiO^(-)` is the repeating unit in silicone.
`HO-overset(R )overset(|)underset(R )underset(|)(S)i-O-overset(R )overset(|)underset(R )underset(|)(S)i-O-overset(R )overset(|)underset(R )underset(|)(S)i-O-`