Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R : Assertion A : A reaction can have zero activation energy. Reasons R : The minimum extra amount of energy absorbed by reactant molecules so that their energy becomes equal to threshold value, is called activation energy. In the light of the above statements, choose the correct answer from the options given below :
Both A and R are true and R is the correct explanation of A
Both A and R are true and R is NOT the correct explanation of A
A is true but R is false
A is false but R is true
Assertion A is true because some reactions, like radical recombinations, have zero activation energy. Reason R is the correct definition of activation energy. However, the definition of activation energy does not explain why a reaction can have zero activation energy. Thus, both are true but R is not the correct explanation of A.
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