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NEET levelSingle correct optionDifficulty 1 of 3pb148

Silicones are polymers whose repeating unit is

A $- R X_{2} Si - CH X_{2} X^{-}$
B $- R X_{2} Si - O X^{-}$
C $- R X_{2} C - O X^{-}$
D $- SiH X_{2} - NH X^{-}$

Answer: B

Silicones are organosilicon polymers with an Si-O-Si backbone and organic groups R on silicon, repeating unit

R X_{2} SiO

.

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