Assertion :The density of a material varies with temperature. Reason: Gases can show linear expansion.

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 C Assertion is correct but Reason is incorrect
The volume of a material varies on changing the temperature. While mass is constant.
Hence density of a material varies on changing the temperature.
Gases do not have a specific shape and hence can exhibit only cubical expansion. Hence, the given statement is false.
Hence, Assertion is correct but Reason is incorrect

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