Correct statements among a to d | Polymers

JEE Main 2019

9-01-2019 S1

Question

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 stability and low dielectric strength
(d) Usually, they are resistant to oxidation and used as greases

Select the correct option:

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

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

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

(a) and (b) only

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

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 commonly used.

Question Tags

JEE Main

Chemistry

Easy

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