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Answer» vinyl chloride, chloroethane, CHLOROBENZENE
vinly chloride, chlorobenzene, chloroethane
chloroethane, chlorobenzene, vinyl chloride
chlorobenzene, vinyl chloriede, chloroethane Solution :In chloroethane the C-Cl bond is HIGHLY polar, C is the POSITIVE pole and Cl is the negative pole. This makes the C atom susceptible to nucleophilic attack. On the OTHERHAND in chlorobenzene and vinyl chloride Cl atom is bonded to an `sp^(2)` hybridixsed C and the `pi` electrons of Cl are involved in `p-pi` conjugation which gives the C-Cl bond a double bond character and also REDUCES the dipole moment of C-Cl bond. since the Cl atom of chlorobenzene is in conjugation with a benzene ring C-Cl bond is much less polar. owing to the +R effect of Cl atom vinly chloride undergoes `S_(N)` reaction in drastic condition. The ascending order of reactivity of halogen atoms is chlorobenzene
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