Arrange the following halides in decreasing order of reactivity for Williamson\'s synthesis `:` `CH_
Channel: Doubtnut
Date: 2020-03-29

Please add description.Arrange the following halides in decreasing order of reactivity for Williamson\'s synthesis `:` `CH_(3)CH_(2)CH_(2)Br,CH_(3)CH_(2)CH_(2)Cl,` `H_(2)C=CH-CH_(2)Cl,CH_(3)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)(C)-CH_(2)Br`