Q440
Assertion (A) : Synthetic detergents can lather when in hard water.Reason (R) : Synthetic detergents form soluble calcium and magnesium salts with hard water.
A.
Both A and R is true and R is the correct explanation of A
AnswerB.
Both A and R is true but R is not a correct explanation of A
C.
A is true but R is false
D.
A is false but R is true
Answer: Option A
Solution
Answer: Option A
Solution:
Both A and R is true and R is the correct explanation of A.