Q.
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
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a
I, II, IV only
b
I, II, III, V only
c
I, III, IV, V only
d
All are correct
answer is D.
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Detailed Solution
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
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