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Reaction Mechanism Questions

Practice 16 Reaction Mechanism questions with detailed answers and explanations. Free MCQs, PYQs, and mock test questions for NEET, JEE, GATE, SSC and more.

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16
Total Questions
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Easy
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12
Medium
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4
Hard
Practice by Exam:Chemistry(16)

About Reaction Mechanism — practice questions, PYQs & concepts

Reaction Mechanism is a frequently-tested topic on Chemistry. ExamTest.live currently lists 16 Reaction Mechanism 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 — every answer key is free, no sign-up required.

Reaction Mechanism weight in competitive exams

Across our Reaction Mechanism question bank, the largest sources are Chemistry (16). Click any exam chip above to drill down to that exam-specific question set.

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All Reaction Mechanism Questions(1–16 of 16)

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Q1hardmcqChemistryNEET (UG) 20172026
0% accuracy
Mechanism of a hypothetical reaction is given below:(i) (fast)(ii) (slow)(iii) (fast)The overall order of the reaction will be:
Q2mediummcqChemistryNEET 20192026
0% accuracy
The structure of intermediate in the following reaction is:
image
Q3mediummcqChemistryAIEEE 20072026
0% accuracy
Which of the following is the correct order of decreasing reactivity? ()
Q4hardmcqChemistryNEET 20172026
Identify A and predict the type of reaction:
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Q5hardmcqChemistryNEET 20172026
Mechanism of a hypothetical reaction is given below:(i) (fast)(ii) (slow)(iii) (fast)The overall order of the reaction will be:
Q6mediummcqChemistryAIEEE2026
The organic chloro compound which shows complete stereochemical inversion during a reaction is:
Q7mediummcqChemistryAIEEE2026
Consider the reaction: The rate equation for this reaction is .Which of these mechanisms is/are consistent with this rate equation?(A) (slow) (fast)(B) (fast equilibrium) (slow)
Q8mediummcqChemistryAIEEE2026
Consider the following bromides:
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The correct order of reactivity is:
Q9mediummcqChemistryAIEEE2026
The main product of the following reaction is
image:

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Q10mediummcqChemistryJEE Main2026
A solution of in toluene racemises slowly in the presence of a small amount of , due to the formation of:
Q11hardmcqChemistryChemistry
6% accuracy
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).Assertion (A) : 1-iodobutane undergoes reaction faster than 1-chlorobutane.Reason (R) : Iodine is a better leaving group because of its large size.In the light of the above statements, choose the correct answer from the options given below :
Q12mediummcqChemistryChemistry
0% accuracy
Which one is a nucleophilic substitution reaction among the following?
Q13mediummcqChemistryChemistry
The reaction of hydrogen and iodine monochloride is given as: This reaction is of first order with respect to and . The following mechanisms were proposed:Mechanism A: Mechanism B: (slow) (fast)Which mechanism is consistent with the rate law?
Q14mediummcqChemistryChemistry
The major product of the reaction between an alkene and in the presence of peroxides is governed by:
Q15mediummcqChemistryChemistry
In the following reaction:
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The major product is:
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Q16mediummcqChemistryChemistry
For the following reactions:
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Which of the following statements is correct?

Frequently Asked Questions

How many Reaction Mechanism questions are on ExamTest.live?▼
We have 16 Reaction Mechanism questions spread across 1 pages, covering easy, medium, and hard difficulty levels with detailed explanations.
Are Reaction Mechanism MCQs free?▼
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Which exams include Reaction Mechanism questions?▼
Reaction Mechanism questions are commonly asked in Chemistry. You can filter by exam using the links above.
How do I practice Reaction Mechanism questions effectively?▼
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.