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Question
The repeating unit in silicone is
Options
\[\ce{SiO2}\]
\[\begin{array}{cc} \ce{R}\phantom{.....}\\ |\phantom{......}\\ \ce{-Si-O -} \phantom{}\\ |\phantom{......}\\\ \phantom{}\ce{R\phantom{......}}\phantom{}\end{array}\]
\[\begin{array}{cc} \ce{}\phantom{...}\\ |\phantom{....}\\ \ce{R-O-Si-O} \phantom{.......}\\ |\phantom{....}\\\ \phantom{}\ce{R\phantom{....}}\phantom{}\end{array}\]
\[\begin{array}{cc} \ce{}\phantom{}\\ |\phantom{..........}\\ \ce{-Si-O-O-R} \phantom{.}\\ |\phantom{..........}\\\ \phantom{}\ce{R\phantom{..........}}\phantom{}\end{array}\]
Solution
\[\begin{array}{cc} \ce{R}\phantom{.....}\\ |\phantom{......}\\ \ce{-Si-O -} \phantom{}\\ |\phantom{......}\\\ \phantom{}\ce{R\phantom{......}}\phantom{}\end{array}\]
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