Question

Choose correct statement about silicones :
(1)
Silicones are used as antifoaming agent in sewage disposal, beer making and in cooking oil used to prepare potato chips.
(2)
In preparation of R2SiCl2 from 'Si', copper powder is used as catalyst.
(3)
Using R3SiCl in a certain proportion we can control the chain length of the polymer.
(4)
All of these.

Answer 1

Answer:

(4. ) -all of these.

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