Dehydrohalogenation involves removal of the halogenn atom together with a hydrogen atom from carbon adjacent to the one with halogen atom. Alcoholic KOH is used for dehydrohalogenation. According to saytzeff's rule, when two alkenes may be formed, the alkene which is most substituted is the major product. Q. Arrange the following alkyl halides in decreasing order of the rate of beta-elimination reaction with alcoholik KOH. underset((i))(CH_(3)CH_(2)CH_(2)Br) underset((ii))(CH_(3)-underset(CH_(3))underset(|)(C)H-CH_(2)Br) underset((iii))(CH_(3)-CH_(2)-underset(Br)underset(|)(C)H-CH_(3))

Dehydrohalogenation involves removal of the halogenn atom together wit

1.	Dehydrohalogenation involves removal of the halogenn atom together with a hydrogen atom from carbon adjacent to the one with halogen atom. Alcoholic KOH is used for dehydrohalogenation. According to saytzeff's rule, when two alkenes may be formed, the alkene which is most substituted is the major product. Q. Arrange the following alkyl halides in decreasing order of the rate of beta-elimination reaction with alcoholik KOH. underset((i))(CH_(3)CH_(2)CH_(2)Br) underset((ii))(CH_(3)-underset(CH_(3))underset(\|)(C)H-CH_(2)Br) underset((iii))(CH_(3)-CH_(2)-underset(Br)underset(\|)(C)H-CH_(3))
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