Which of the following reactions are not feas | vedclass

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(D) $I$. The reaction $CH_3CH=CH_2 \xrightarrow{HCl, (C_6H_5CO)_2O_2} CH_3CH_2CH_2Cl$ is not feasible because the peroxide effect (Kharasch effect) is

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$I$ & $III$ only

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(D) $I$. The reaction $CH_3CH=CH_2 \xrightarrow{HCl, (C_6H_5CO)_2O_2} CH_3CH_2CH_2Cl$ is not feasible because the peroxide effect (Kharasch effect) is only observed with $HBr$,not with $HCl$ or $HI$.$II$. The reaction $C_6H_6 + CH_3CH_2CH_2Cl \xrightarrow{AlCl_3} C_6H_5CH(CH_3)_2$ is feasible. The $n$-propyl carbocation formed initially rearranges to the more stable isopropyl carbocation,which then undergoes Friedel-Crafts alkylation to yield isopropylbenzene.$III$. The reaction $CH_3CHClCH_2Cl \xrightarrow{KOH, \Delta} CH_3C \equiv CH$ is not feasible. Dehydrohalogenation of vicinal dihalides with $KOH$ typically yields a vinyl halide or an alkene. To obtain an alkyne,a stronger base like $NaNH_2$ is required.$IV$. The reaction $CH_3CH=CHCH_3 \xrightarrow{KMnO_4 / H^+} CH_3COOH$ is feasible as it involves the oxidative cleavage of the alkene.Thus,reactions $I$ and $III$ are not feasible.

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