Assertion :When common salt is kept open, it absorbs moisture from the air. Reason: Common salt contains magnesium chloride.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
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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