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Activation Energy Questions

Practice 4 Activation Energy questions with detailed answers and explanations. Free MCQs, PYQs, and mock test questions for NEET, JEE, GATE, SSC and more.

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Practice by Exam:Chemistry(4)

About Activation Energy โ€” practice questions, PYQs & concepts

Activation Energy is a frequently-tested topic on Chemistry. ExamTest.live currently lists 4 Activation Energy questions spanning previous-year papers from 2026 to 2026, each with worked solutions and a step-by-step explanation. Use the filters on this page to focus on a specific exam, difficulty level or year โ€” every answer key is free, no sign-up required.

Activation Energy weight in competitive exams

Across our Activation Energy question bank, the largest sources are Chemistry (4). Click any exam chip above to drill down to that exam-specific question set.

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All Activation Energy Questions(1โ€“4 of 4)

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Q1mediummcqChemistryAIEEE2026
0% accuracy
Consider an endothermic reaction, with the activation energies and for the backward and forward reactions, respectively. In general:
Q2mediummcqChemistryAIEEE 20072026
0% accuracy
The energies of activation for forward and reverse reactions for are and respectively. The presence of a catalyst lowers the activation energy of both (forward and reverse) reactions by . The enthalpy change of the reaction () in the presence of catalyst will be (in ):
Q3easymcqChemistryNEET 20232026
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.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.In the light of the above statements, choose the correct answer from the options given below:
Q4mediummcqChemistryChemistry
For an endothermic reaction, energy of activation is and enthalpy of reaction is (both of these in ). The minimum value of will be:

Frequently Asked Questions

How many Activation Energy questions are on ExamTest.live?โ–ผ
We have 4 Activation Energy questions spread across 1 pages, covering easy, medium, and hard difficulty levels with detailed explanations.
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Which exams include Activation Energy questions?โ–ผ
Activation Energy questions are commonly asked in Chemistry. You can filter by exam using the links above.
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Start with easy questions to build confidence, then tackle medium and hard ones. Use the filter buttons to sort by difficulty. Reveal the answer only after attempting each question, and read the explanation thoroughly.