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$2 RCl + Si \overset{}{} \to_{570 K}^{Cu powder} R_{2} {SiCl}_{2} \overset{H_{2} O}{⟶} R_{2} Si (OH)_{2} \overset{Polymerisation}{⟶} polymer (A)$
then polymer (A) can not be :

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crosslinked 3D silicone

linear silicone

none of these

cyclic silicone

answer is B.

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Detailed Solution

Crosslinked 3D silicone can not be obtained from $R_{2} Si (OH)_{2}$ by condensation polymerisation.

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