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Haloalkanes And Haloarenes

Question
CBSEENCH12007609

Arrange each set of compounds in order of increasing boiling points:




Solution

1-bromobutane is a primary alkyl halide whereas 2-bromobutane is secondary alkyl halide. The nucleophile approaching is more hindered in 2- bromobutane than in 1-bromobutane. Therefore, 1- bromobutane reacts more rapidly than 2- bromobutane by an SN2 mechainsm.