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Discussion

Assertion (A) :  Clothes are not washed properly in hard water. 

 Reason (A)    :  Hard water contains many minerals. 

  • 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: B

Clothes are not washed properly in hard water because it does not form lather with soap. However, it is true that hard water contains many minerals. 

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