For the Assertion (A) and Reason (R) below, choose the correct alternative:
Assertion (A) : When common salt is kept open, it absorbs moisture from the air.
Reason (R) : Common salt contains magnesium chloride.

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CSIR CERI JSA Official Paper-I (Held On: 2022)
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  1. Both (A) and (R) are true and (R) is the correct explanation of (A).
  2. Both (A) and (R) are true but (R) is NOT the correct explanation of (A).
  3. (A) is true but (R) is false.
  4. (A) is false but (R) is true.

Answer (Detailed Solution Below)

Option 1 : Both (A) and (R) are true and (R) is the correct explanation of (A).
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Detailed Solution

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

Reason (R) Common salt contains magnesium chloride → True

Magnesium chloride is common salt is deliquescent and absorbs moisture from the air. Thus the reason (R) is the correct explanation of the assertion (A).

Thus, Both A and R are true and R is the correct explanation of A.

Hence, "Option 1" is the correct answer.

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