Question 88: Properties of Matter

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.

Accepted Answer

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

Answer

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

Answer

Both (A) and (R) are true but (R) is not the correct explanation of (A)

Answer

(A) is true but (R) is false

Answer

(A) is false but (R) is true

Properties of Matter

Choose the correct answer: