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JEE Main Chemistry question

ChemistryHaloalkanes and HaloarenesJEE Main

Which of the following applies in the reaction

(i)\ =\ (major),\ \ (ii)\ =\ (minor)

Answer: (B)

Solution

Dehydrohalogenation of 2-bromobutane with alcoholic KOH can give either the more substituted alkene (2-butene, by removing a -H from C-3) or the less substituted alkene (1-butene, by removing a -H from the terminal methyl

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Question ID VK-148071