JEE Main Chemistry question

Not in JEE Main or NEET syllabus

Which of the following alkenes is most reactive towards cationic polymerization?

(A)
(B)
(C)Correct
(D)

Answer: (C)

Solution

In cationic polymerization, the alkene that forms the most stable carbocation intermediate on protonation reacts fastest. Comparing the carbocations formed, (from styrene) is resonance-stabilized by the phenyl ring and is more stable

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Question ID VK-151333