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MHT CET202611 April 2026Morning ShiftChemistryHaloalkanes and HaloarenesActual

The major product 'B' in the below mentioned reaction is-

Options

  1. ABromoethane
  2. B1-Bromopropane
  3. C2-Bromopropane
  4. DCarbontetrabromide

Correct answer

C. 2-Bromopropane

Step-by-step solution

The given reactant is 2-bromopropane ( CH ₃- CH ( Br )- CH ₃ ). When 2-bromopropane is treated with alcoholic KOH and heated, it undergoes dehydrohalogenation ( -elimination) to form propene (A). CH ₃- CH ( Br )- CH ₃ Alc. KOH, CH ₃- CH = CH ₂ Next, propene (A) reacts with HBr in the absence of peroxide. This is an electrophilic addition reaction that follows Markovnikov's rule. The negative part of the addendum ( Br ^- ) attaches to the carbon atom of the double bond that has fewer hydrogen atoms. CH ₃- CH = CH ₂

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