Given below arc two statements : One is labelled as Assertion (A) and the other is labelled as R...

Channel:
PW Solutions
Subscribers:
443,000
Published on ● Video Link: https://www.youtube.com/watch?v=sH4eTY-llkE


Duration: 6:44
5 views
0

Given below arc two statements : One is labelled as Assertion
(A) and the other is labelled as Reason (R).
Assertion (A) : Clothes containing oil or grease stains cannot be cleaned by water wash.

Reason (R): Because the angle of contact between the oil/ grease and water is obtuse. In the light of the above statements, choose the correct answer from the option given below.
(a) Both \( (\mathrm{A}) \) and \( (\mathrm{R}) \) are true and \( (\mathrm{R}) \) is the correct explanation of \( (A) \)
(b) Both (A) and ( \( \mathrm{R}) \) arc true but \( (\mathrm{R}) \) is not the correct explanation of \( (A) \)
(c) (A) is true but (R) is false
(d) (A) is true but (R) is true
šŸ“²PW App Link - https://bit.ly/YTAI_PWAP
šŸŒPW Website - https://www.pw.live



Other Videos By PW Solutions


2023-07-03Which of following is arranged in decreasing order of size? (a) \( \mathrm{Mg}^{2+}\mathrm{Al}^{...
2023-07-03Consider two electronic configuration of \( \mathrm{K} \) (Potassium) given below : (I) \( K=1 s...
2023-07-03The velocity of a small ball of mass \( m \) and density \( d_{1} \) when dropped in a contain...
2023-07-03The area of cross-section of a large tank is \( 0.5 \mathrm{~m}^{2} \) It has a narrow opening n...
2023-07-03A small spherical ball of radius \( 0.1 \mathrm{~mm} \) and density \( 10^{4} \) \( \mathrm{kg} ...
2023-07-03The velocity of upper layer of water in a river is \( 36 \mathrm{kmh}^{-1} \). Shearing stress b...
2023-07-03A drop of liquid of density \( \rho \) is floating half immersed in a liquid of density \( \sigm...
2023-07-03Two cylindrical vessels of equal cross-sectional area \( 16 \mathrm{~cm}^{2} \) contain water up...
2023-07-03A rectangular concrete block (specific gravity \( =2.5 \) ) is used as a retaining wall in a res...
2023-07-03There are two tanks next to each other having cross sectional area \( A_{1} \) and \( A_{2} \). ...
2023-07-03Given below arc two statements : One is labelled as Assertion (A) and the other is labelled as R...
2023-07-03A water drop of radius \( 1 \mathrm{~cm} \) is broken into 729 equal droplets. If surface tensio...
2023-07-03Mercury of density \( \left(\rho_{\mathrm{Hg}}\right) \) is poured into cylindrical communicatin...
2023-07-03A water clock consist of a vessel which has a small orifice \( O \). The upper container is fill...
2023-07-03A water drop of radius \( 1 \mu \mathrm{m} \) falls in a situation where the effect of buoyant f...
2023-07-03A bottle is kept on the ground as shown in the figure. The bottle can be modelled as having two ...
2023-07-03Comprehension \( \quad \) A rod of length \( 6 \mathrm{~m} \) has a mass \( 12 \mathrm{~kg} \). ...
2023-07-03A non uniform cube of side length \( a \) is kept inside a container as shown in the figure. The...
2023-07-03A wooden block floats in water in a sealed container. Which copper in litre, at rest, \( 25 \% \...
2023-07-03Comprehension A rod of length \( 6 \mathrm{~m} \) has a mass \( 12 \mathrm{~kg} \). It is hinged...
2023-07-03A square gate of size \( 4 \mathrm{~m} \times 4 \mathrm{~m} \) is hinged at topmost point. A flu...