Question

Question 11.38 If the starting material for the manufacture of silicones is RSiCl3, write the structure of the product formed.

Class XI The p-Block Elements Page 325

Answer 1

Hydrolysis of alkyltrichlorosilanes proceed in two steps :
i)Cl- is replaced by OH- ions and form RSi(OH)3
ii) again RSi(OH)3 polymerize and form shown cross linked silicones.
see the attachment , here we see the structure of the product formed.

Answer 2

Answer:

Silicones are prepared by the hydrolysis of alkyl or aryl substituted silicon halides. Alkyl or aryl substituted silicon halides are prepared by passing gaseous alkyl or aryl halide over an alloy of copper and silicon at 300°C. The hydrolysis of dimethyldichlorosilane gives dimethyl silanol.