Choose the correct alternative from the following :
Assertion (A) : Clothes are not washed properly in hard water.
Reason (R) : Hard water contains many minerals.
Option:
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.
E. Both A and R are false.
Answer: B . Both A and R are true but R is NOT the correct explanation of A.
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Justification:
Clothes are not washed properly in hard water because it does not form lather with soap.
However, it is true that hard water contains mant minerals.
