Assertion :The melting point is defined for solids when it converts from solid state to liquid state. Reason: The boiling point is defined for liquids for a state change from liquid to gas.

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
The melting point is a defined for solids as: When solids convert from solid state to liquid state and both state remain in equilibrium. The boiling point is defined for liquids for a state change from liquid to gas. Hence both statements are definitions of melting and boiling points.

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