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Given below are two statements
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.
Choose the correct answer from the option given below

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Both A and R are true but R is not the correct explanantion of A

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

A is false but R is true

A is true but R is false

answer is A.

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Detailed Solution

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.

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