The straight chain polymer (silicones) is formed by:
(a) hydrolysis of CH₃SiCl₃ followed by condensation polymerisation
(b) hydrolysis of (CH₃)₄Si by addition polymerisation
(c) hydrolysis of (CH₃)₂SiCl₂ followed by condensation polymerisation
(d) hydrolysis of (CH₃)₃SiCl
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Answer:
option B
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(c) hydrolysis of (CH₃)₂SiCl₂ followed by condensation polymerisation
Explanation:
Hydrolysis of substituted chlorosilanes yields corresponding silanols which undergo polymerisation. Out of the given chlorosilanes, hydrolysis of only (CH₃)₂SiCl₂ will give straight chain polymers followed by condensation polymerisation.
Option C is the answer.
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