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Question

The monomer units of silicons, a water repellant, acid resistant and heat resistant polymer, is:
  1. Si
  2. R2Si(OH)2
  3. SiO2
  4. RSiOH

A
SiO2
B
R2Si(OH)2
C
Si
D
RSiOH
Solution
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Alkyl group is water repellent and acid as well as heat resistant because of high bond energy.

Hence, the monomer units of silicones as water repellant, acid-resistant and heat resistant polymer is R2Si(OH)2.

Therefore, option C is correct.

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