A) vinyl chloride, chloroethane, chlorobenzene
B) vinyl chloride, chlorobenzene, chloroethane
C) chloroethane, chlorobenzene, vinyl chloride
D) chlorobenzene, vinyl chloride, chloroethane
Correct Answer: D
Solution :
The reactivity of halogen atom in ascending order is in the following set chlorobenzene < vinyl chloride < hloroethane. This is because of the fact that in chlorobenzene and vinyl chloride, the \[C-Cl\]bond acquires some double bond character due to resonance.
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