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Discussion

Assertion(A)   :   When common salt is kept open, it absorbs moisture from the air. 

Reason (R)     :   Common salt contains magnesium chloride. 

  • 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: A

Magnesium chloride present in common salt is a deliquescent substance i.e. it absorbs moisture from the air when kept in open. 

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