Chemistry-Enthalpy
NEET Chemistry Enthalpy Assertion Reason Question
Type: Assertion Reason-assertion-Easy-Class 11
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.
A
Both A and R are true and R is the correct explanation of A.
B
Both A and R are true but R is not the correct explanation of A.
C
A is true but R is false.
D
A is false.
Correct Answer
Option C
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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