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  • Need clarity, kindly explain! Correct statements among a to d regarding silicones are : (a) They are polymers with hydrophobic character (b) They are biocompatible (c) In general ,they have high thermal stablity and low dielectric strength. (d

Correct statements among a to d regarding silicones are :

(a) They are polymers with hydrophobic character

(b) They are biocompatible

(c) In general ,they have high thermal stablity and low dielectric strength.

(d) Usually ,they are resistant to oxidation and used as greases

 

  • Option 1)

    (a),(b),(c) and (d)

  • Option 2)

    (a),(b). and (c) only

  • Option 3)

    (a) and (b) only

  • Option 4)

    (a),(b) and (d) only

Answers (2)

best_answer

 

Silicones -

Polymeric organo-silicon compounds having (R2SiO)n general formula

R= alkyl or aryl groups

-

 

 

Cyclic or ring silicates -

Two tetrahedral units share two oxygen atoms per tetrahedron to form a closed ring containing basic unit \left ( SiO_{3} \right )_{n}^{2n-}

- wherein

E.g. Beryl \left ( Be_{3}Al_{2}Si_{6}O_{18} \right )

as we know

they hve high trermal stability nd elecrtric strength but(C) has low dielectric strength which is incorrect

(NCERT) CLASS 12th oart 2 page no. 330 line 3)

 


Option 1)

(a),(b),(c) and (d)

Option 2)

(a),(b). and (c) only

Option 3)

(a) and (b) only

Option 4)

(a),(b) and (d) only
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