1. The problem statement, all variables and given/known data which of the following is least volatile (1)propyl fluoride (2)propyl chloride (3)isopropyl bromide (4)propyl bromide 2. Relevant equations _______ 3. The attempt at a solution The boiling points of different alkyl halides containing the same halogen increase with increasing chain length. For a given chain length, the boiling point increases as the halogen is changed from fluorine to iodine. For isomers of the same compound, the compound with the more highly‐branched alkyl group normally has the lowest boiling point. Hence, the correct order of volatile nature of the compounds mentioned are: Propyl fluoride > Propyl Chloride > Isopropyl bromide > Propyl bromide right?