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

M e_{3} S i C l

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P h S i C l_{3}

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M e S i C l_{3}

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M e_{2} S i C l_{2}

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Solution

The correct option is A $M e_{3} S i C l$
On hydrolysis, one $O H$ group will take the place of each $C l$ group. If we can have at the very least 2 replaceable $C l$ groups,
a high molecular mass silicone polymer shall come into play.
Let us take a popular example for illustration:

$M e_{2} S i C l_{2} + 2 H_{2} O ⟶ M e_{2} S i (O H)_{2}$
The product polymerizes to yield

$[- O - M e_{2} S i - O -]_{n}$

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