Assertion A When common salt is kept open it absorbs moisture from the air Reason R Common...........

General Studies(Punjab Allied) General Science

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

Reason (R) : Common salt contains magnesium chloride.

If both A and R are true and R is the correct explanation of A

If both A and R are true but R is not the correct explanation of A

If A is true but R is false

If A is false but R is true

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Explanation:

- Assertion (A): Common salt (sodium chloride) absorbs moisture when left open. This phenomenon is true, as common salt is often seen to become clumpy due to moisture absorption from the air.

- Reason (R): It is true that magnesium chloride is present in small amounts as an impurity in common salt and is highly hygroscopic, meaning it absorbs water.

- Option 1: This suggests both A and R are true, with R being the correct explanation of A.

- Option 2: Both A and R are true, but R doesn’t explain A correctly.

- Option 3: A is true, but R is false.

- Option 4: A is false, but R is true.

- Correct Answer: Option 1