Action of hydrogen chloride on CH_3-C(CH_3)=C | vedclass

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(B) The addition of $HCl$ to isobutylene $(CH_3-C(CH_3)=CH_2)$ follows Markovnikov's rule,where the electrophile $H^+$ adds to the terminal carbon to

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$CH_3-CCl(CH_3)-CH_3$ and $CH_3-CHCl_2$

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(B) The addition of $HCl$ to isobutylene $(CH_3-C(CH_3)=CH_2)$ follows Markovnikov's rule,where the electrophile $H^+$ adds to the terminal carbon to form a stable tertiary carbocation,which then reacts with $Cl^-$ to form $2$-chloro-$2$-methylpropane $(CH_3-CCl(CH_3)-CH_3)$.For acetylene $(CH \equiv CH)$,the addition of $HCl$ occurs in two steps. The first step yields vinyl chloride $(CH_2=CHCl)$. The second step follows Markovnikov's rule,where the $H^+$ adds to the carbon already bearing the hydrogen,resulting in the formation of $1,1$-dichloroethane $(CH_3-CHCl_2)$.

Action of hydrogen chloride on $CH_3-C(CH_3)=CH_2$ and on $CH \equiv CH$ will predominantly give the compounds,respectively

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