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JEE Main Chemistry question

ChemistryHydrocarbonsJEE Main

The reaction conditions used for converting 1,2-dibromopropane to propylene are [J & K CET 2006]

Answer: (A)

Solution

Vicinal (1,2-) dihalides undergo double dehydrohalogenation with alcoholic KOH to regenerate an alkene by loss of two HX molecules: CHCHBrCHBr

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Question ID VK-142136