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Question: Answered & Verified by Expert
The straight chain polymer is formed by
Chemistryp Block Elements (Group 13 & 14)JEE Main
Options:
  • A hydrolysis of $\left(\mathrm{CH}_3\right)_3 \mathrm{SiCl}$ followed by condensation polymerisation
  • B hydrolysis of $\mathrm{CH}_3 \mathrm{SiCl}_3$ followed by condensation polymerisation
  • C hydrolysis of $\left(\mathrm{CH}_3\right)_4 \mathrm{Si}$ by addition polymerisation
  • D hydrolysis of $\left(\mathrm{CH}_3\right)_2 \mathrm{SiCl}_2$ followed by condensation polymerisation
Solution:
1076 Upvotes Verified Answer
The correct answer is: hydrolysis of $\left(\mathrm{CH}_3\right)_2 \mathrm{SiCl}_2$ followed by condensation polymerisation


$\mathrm{RSiCl}_3$ (trichloro derivatives) on hydrolysis followed by condensation polymerisation yields branched chain silicones.
Straight chain silanes are silicone oils. These are more stable at high temperature than mineral oils and have less tendency to thicken at low temperature.

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