Q.

Silicone is a polymer of –

A. Tetraalkyl silane
B. Silicon tetrachloride
C. Dialkyl dichloro silane
D. Silane
Answer» C. Dialkyl dichloro silane
Explanation: In order to manufacture silicones, alkyl-substituted chlorosilanes are used as starting material. Since dimethylsilane contains —OH group at the end of the chain,polymerization and chain length increases. However, the hydrolysis of alkyl trichlorosilane gives very complex cross linked polymer.
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