1.

The correct order of leaving group ability in a nucleophilic substitution reaction is

Answer»

`Br^(-) gt CL^(-)gt CH_3CO_2^(-) gt H^(-)`
`H^(-)gt CH_3CO_(2)^(-) gt Cl^(-) Br^(-)`
`Br^(-) gt CH_3CO_(2)^(-) gt Cl^(-) gt H^(-)`
`CH_3CO_2^(-) gt Br^(-) gt Cl^(-) gt H^(+)`

ANSWER :A


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