Activation energy is defined as the minimum amount of extra energy required by a reacting molecule to get converted into a product. IfEa=0 , then according to Arrhenius equation k=Ae−Ea/RT=Ae0=A . This implies that every collision results into a chemical reaction which cannot be true. So, a reaction cannot have zero activation energy.
Given below are two statements: one labelled as Assertion A and other is labelled as Reason R: Assertion A: A reaction can have zero activation…
NEET UG 2023 — Chemistry Physical Chemistry
2023mcqmedium
Given below are two statements: one labelled as Assertion A and other is labelled as Reason R:
Assertion A: A reaction can have zero activation energy
Reason R: The minimum extra amount of energy absorbed by reactant molecules so that their energy becomes equal to threshold value, is called activation energy.
Official previous-year question
Held on 30 Apr 2023 · Verified 9 Jul 2026.
Options
- A
A is false but R is true.
- B
Both A and R are true and R is the correct explanation of A.
- C
Both A and R are true and R is not the correct explanation of A.
- D
A is true but R is false.
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