Fundamentholfundamenthol
JEE Main2019Chemistry
Q.

Correct statements among a to d regarding silicones are:

(1) They are polymers with hydrophobic character

(2) They are biocompatible.

(3) In general, they have high thermal stability and low dielectric strength.

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

  1. A

    (1), (2) and (3) only

  2. B

    (1) and (2) only

  3. C

    (1), (2), (3) and (4)

  4. D

    (1), (2) and (4) only

Solution

Silicones are polymer with Si–O–Si linkages and are strongly hydrophobic. They are highly thermally stable with high dielectric strength. Now a days silicone greases are commony used.

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