Assertion :Sodium chloride is used effectively to melt snow and ice BECAUSE Reason: sodium chloride melts at a high temperature.

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 B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
Sodium chloride is used effectively to melt snow and ice as it is present in large quantity and cheap. It depress the melting point of snow and ice. Sodium chloride is an ionic compound. It melts at higher temperature than other compounds which are not ionic.

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