How many of the following alkenes on addition of HBr would give the sa – InterviewSolution

1.	How many of the following alkenes on addition of HBr would give the same product in the presence or absence of peroxide? propene, 1-butene, 2-butene, 2-methylpropene, 3-methyl-1-butene, 2,3-dimethyl- 1-butene, 2-pentene, 1-pentene, 4-methyl-2-pentene.
Answer» Solution :Only 2-butene is SYMMETRICAL and HENCE GIVES the same product in presence or ABSENCE of peroxide.

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