NEET Chemistry Enthalpy Assertion Reason Question
Assertion (A): In an exothermic reaction, the enthalpy change (∆rH) is negative.
Reason (R): In an exothermic reaction, heat is absorbed by the system from the surroundings.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
A is false.
Correct Answer
Detailed Explanation
In an exothermic reaction, heat is evolved, and ∆rH is negative because the system loses heat to the surroundings, not absorbs it.
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