AIIMS 2019 Chemistry Reactivity of Alkanes MCQ Question
Assertion: Cyclopropane reacts with in dark.
Reason: This is due to less reactivity of cyclopropanene.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Correct Answer
Detailed Explanation
Cyclopropane reacts with Cl₂ in the dark due to the strain in its three-membered ring, which makes it more reactive than larger alkanes. This strain allows cyclopropane to undergo free radical halogenation more readily, resulting in the formation of chlorinated products. Other options are not relevant as they do not pertain to the specific reaction mechanism or the unique properties of cyclopropane that facilitate its reactivity with Cl₂. Understanding the influence of ring strain on reactivity is crucial in organic chemistry, particularly in the context of halogenation reactions.
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