$\mathrm{Me}_3 \mathrm{SiCl}$ is used during polymerisation of organosílicones because

$\mathrm{Me}_3 \mathrm{SiCl}$ is used during polymerisation of organosílicones because
  1. the chain length of organ silicone polymers can be controlled by adding $\mathrm{Me}_3 \mathrm{SiCl}$
  2. $\mathrm{Me}_3 \mathrm{SiCl}$ improves the quality of the silicone polymer
  3. $\mathrm{Me}_3 \mathrm{SiCl}$ improves the yield of the silicone polymer
  4. $\mathrm{Me}_3 \mathrm{SiCl}$ acts as a catalyst during polymerisation

Solution

$\left(\mathrm{CH}_3\right)_3 \mathrm{SiCl}$ is used during polymerisation of organosilicons because the chain length of organosilicon polymers can be controlled by adding $\left(\mathrm{CH}_3\right)_3 \mathrm{SiCl}$ which blocks the ends of silicon polymer. Hence, the correct option is (1).

Asked in: AP EAMCET 2020 (22 Sep Shift 1)

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