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JEE Main Chemistry question

ChemistryHaloalkanes and HaloarenesJEE Main

A sample of 2,3-dibromo-3-methylpentane is heated with zinc dust; the resulting alkene is isolated and then heated with HI in the presence of red phosphorus. The final organic product is

Answer: (A)

Solution

Zn removes the vicinal dibromide from CH–CHBr–C(CH)Br–CHCH to give the alkene 3-methylpent-2-ene; excess HI with red phosphorus is a powerful reducing combination that fully saturates

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Question ID VK-142607