Question

Given below are 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 (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. (A) is true but (R) is false
• D. (A) is false but (R) is true

Answer 1

Answer: (A)

Both (A) and (R) are true and (R) is the correct explanation of (A)

Answer 2

Due to obtuse angle of contact the water doesn’t wet the oiled surface properly and cannot wash it also.
$⇒$ Assertion is correct and Reason given is a correct explanation.

So, the correct option is (A): Both (A) and (R) are true and (R) is the correct explanation of (A).