When 1,3-diphenyl-2-propanone is treated with Br2 in acid, l,3-dibromo-l,3-diphenyl-2-propanone is obtained in good yield. On further characterization,

Question:

When 1,3-diphenyl-2-propanone is treated with Br2 in acid, l,3-dibromo-l,3-diphenyl-2-propanone is obtained in good yield. On further characterization, however, this product proves to have a very broad melting point (79-87 °C), a fact suggesting a mixture of compounds. Account for this observation.