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

C H_{2} = C H C H_{3}

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H_{2} C = C H C l

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H_{2} C = C H C_{6} H_{5}

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H_{2} C = C H C O_{2} C H_{3}

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Solution

The correct option is B $H_{2} C = C H C_{6} H_{5}$
When the electron displacement takes place towards the $C = C$ bond, the bond is more easily attacked by the electrophile and undergoes cationic addition polymerisation. The rate determining step is formation of carbocation. Therefore, more the stable carbocation, more reactive is the alkene towards cationic polymerization.

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Similar questions

H_{2} C = {C H C H}_{3}

H_{2} C = C H C l

H_{2} C = C H - C_{6} H_{5}

H_{2} C = {C H C O}_{2} {C H}_{3}

H_{2} C = C H - C H = C H_{2}

C H \equiv C H

C H_{2} = C H_{2}

H_{2} C = C H - C l

H C | C l = C H | C l

H_{2} C = C H - \oplus C H_{2}

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