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(B) The peroxide effect (Kharasch effect) is only applicable to the addition of $HBr$ to unsymmetrical alkenes. For $HCl$,the addition follows Markovn

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$CH_3\dot{C}HCH_3$

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(B) The peroxide effect (Kharasch effect) is only applicable to the addition of $HBr$ to unsymmetrical alkenes. For $HCl$,the addition follows Markovnikov's rule even in the presence of peroxide. In the addition of $HCl$ to propene $(CH_3-CH=CH_2)$,the electrophile $H^+$ attacks the double bond to form the more stable secondary carbocation,$CH_3-CH^+-CH_3$. Therefore,the intermediate formed is the secondary carbocation,$CH_3-CH^+-CH_3$.

Which intermediate is formed during the addition of $HCl$ to propene in the presence of peroxide?

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