Assertion (A) : Silicones are used for water proofing of fabrics. Reason (R): The repeating unit in silicones is
The correct answer is

• Correct answer
  A

  (A) and (R) are correct, but (R) is not the correct explanation of (A)
• B

  (A) and (R) are correct, (R) is the correct explanation of (A)
• C

  (A) is not correct but (R) is correct
• D

  (A) is correct but (R) is not correct

Solution

Silicones are used as water profing of fabrics because it form hydrophobic layer and repel thus resistant to water.

Hence, the correct answer is option: 'A'.