True statements about silicones/ silicates are: 
I) Silicones resist oxidation and attack by organic reagents 
II) Silicones are lubricants at low as well as high temperature 
III) Cross-linked silicones are formed by the hydrolysis of trichlorosilicone and 
subsequent polymerization 
IV) Silicones are good electrical insulators and are antifoaming agents. 
V) Both Silicones and Silicates compound contains Si – O – Si linkage 
 

• A

  I, II, IV only

• B

  I, II, III, V only

• C

  I, III, IV, V only

• D

  All are correct