Assertion (A): Silicones are water repelling in nature.
Reason (R): Silicones are organosilicon polymers, which have (-R2SiO-) as repeating unit.
(A) Both A and R are true and R is the correct explanation of A.
(B) Both A and R are true but R is not the correct explanation of A.
(C) Both A and R are not correct.
(D) A is not correct but R is correct.
Assertion (A): Silicones are water repelling in nature.
Reason (R): Silicones are organosilicon polymers, which have (-R2SiO-) as repeating unit.
(A) Both A and R are true and R is the correct explanation of A.
(B) Both A and R are true but R is not the correct explanation of A.
(C) Both A and R are not correct.
(D) A is not correct but R is correct.
-
1 Answer
-
This is a Assertion and Reason Type Questions as classified in NCERT Exemplar
(B)
Silicones are a class of silicon polymers that contain the repeating unit (-R 2 SiO-). Silicones are water repellent in nature because they are surrounded by non-polar alkyl groups, so A and R are both correct, but R is not the correct explanation of A.
Similar Questions for you
This is a Assertion and Reason Type Questions as classified in NCERT Exemplar
(A)
In aluminium silicate, silicon is doped with group 13 elements and as aluminium is trivalent and silicon is tetravalent so, on replacing aluminium by Silicon, a negatively charged structure will be obtained. Both the statements assertion and reason are correct and reason is the correct explanation of assertion.
This is a Matching Type Questions as classified in NCERT Exemplar
(i)→ (b), (ii) → (c), (iii) → (b), (iv) → (a) (v)→ (b) (vi)→ (c)
This is a Matching Type Questions as classified in NCERT Exemplar
(i)→ (c) (ii)→ (d) (iii)→ (a) (iv)→ (e) (v)→ (b)
This is a Matching Type Questions as classified in NCERT Exemplar
(i)- (e), (ii)- (c), (iii)- (d), (iv)- (a) & (b)
This is a Multiple Choice Questions as classified in NCERT Exemplar
(B) & (D)
The following is the resonance structure of CO2.

Taking an Exam? Selecting a College?
Get authentic answers from experts, students and alumni that you won't find anywhere else
Sign Up on ShikshaOn Shiksha, get access to
- 65k Colleges
- 1.2k Exams
- 682k Reviews
- 1800k Answers