Assertion :The zeroth law of thermodynamics was known before law I of thermodynamics. Reason: The zeroth law concerning thermal equilibrium was appeared after three laws (I, II and III) of termodynamics and thus was named as zeroth law.

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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Assertion is incorrect but Reason is correct

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Solution

The correct option is D Assertion is incorrect but Reason is correct
The zeroth law concerning thermal equilibrium was appeared after three laws (I, II and III) of termodynamics and thus was named as zeroth law.
Zeroth law of thermodynamics was put forward after 1st law of thermodynamics.
So, assertion is incorrect and reason is correct

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Choose the correct option.

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