Question

Which of the following reactants can be employed to prepare 1-chloropropane?

• A. Propene and $HCl$ in presence of peroxides
• B. Propene and $HCl$ in absense peroxides
• C. Propene and ${Cl}_2$ followed by treatment with aqueous $KOH$
• D. None of these

Answer 1

The correct option is D None of these

Propene reacts with $HCl$ in presence and absence of peroxides to give 2-chloropropane. Therefore, options (a) and (b) are wrong.
Option (c) is also wrong because propene reacts with ${Cl}_2$ to give propylene chloride which upon hydrolysis with aqueous $KOH$ gives propylene glycol, i.e.,
${CH}_3-CH={CH}_2\underset{}{\overset{{Cl}_2}{\to }}{H}_{3}C-CH\left(Cl\right)-{CH}_{2}Cl\underset{}{\overset{aq.KOH}{\to }}{CH}_3-CH\left(OH\right)-{CH}_{2}OH$