MolSynapsequestion bank
MolSynapse / Question bank / Aldehydes, Ketones and Carboxylic Acids / Reduction, oxidation and HVZ products of drawn carbonyls and acids
JEE Main levelSingle correct optionDifficulty 2 of 3co254

The acid shown is treated with and a little red phosphorus (Hell-Volhard-Zelinsky), followed by water. Which structure is the product?

  1. AStructure A
  2. BStructure B
  3. CStructure C
  4. DStructure D

Answer: B

The drawn compound is butanoic acid. Red P gives the acyl bromide, whose enol brominates at the alpha carbon (C2); hydrolysis gives 2-bromobutanoic acid. Beta or gamma bromination is not observed and one equivalent of Br2 gives monobromination.
Practice Aldehydes, Ketones and Carboxylic Acids More on Reduction, oxidation and HVZ products of drawn carbonyls and acids
Previous questionNext question

More questions on Reduction, oxidation and HVZ products of drawn carbonyls and acids