Assertion : The enthalpy of both graphit...

Assertion : The enthalpy of both graphite and diamond is taken to be zero, being elementary substances.
Reason : The enthalpy of formation of an elementary substance in any state is taken as zero. : If both (A) and (R) are correct and (R) is the correct explanation of(A)., If both (A) and (R) are correct, but (R) is not the correct explanation of(A)., If(A) is correct, but (R) is incorrect., If both (A) and (R) are incorrect.

and (R) are correct and (R) is the correct explanation of(A).

If both (A) and (R) are correct, but (R) is not the correct explanation of(A).

If(A) is correct, but (R) is incorrect.

If both (A) and (R) are incorrect.

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The correct Answer is:

Enthalpy of element in most stable state is zero. Diamond is not a stable state of carbon.

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BRILLIANT PUBLICATION-CHEMICAL THERMODYNAMICS -LEVEL-II (Assertion-Reason Type)

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