Haloalkanes and Haloarenes - Result Question 35
####35. When chlorine is passed through propene at $400^{\circ} C$, which of the following is formed? [1993]
(a) PVC
(b) Allyl chloride
(c) Alkyl chloride
(d) 1,2-Dichloroethane
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Solution:
- (b) At high temp. i.e., $400^{\circ} C$ substitution occurs in preference to addition.
$ CH_3 CH=CH_2 \xrightarrow[-HCl]{Cl_2, 400^{\circ} C} $
$ ClCH_2 CH=CH_2 $