Question, Ammonia, phosphine, intermolecular, phosphine, physical, bonding
QUESTION 6: The boiling point of ammonia is higher than of phosphine. Explain SOLUTION: Ammonia, NH3 have strong hydrogen bonding whereas phosphine, PH 3 have simple vander waals forces as intermolecular forces. Thus more energy is required to overcome hydrogen bonding present in ammonia. As a result ammonia has high boiling point than phosphine. QUESTION 7: An element X conducts electricity and melts at 660 0 C. It reacts vigorously with chlorine, after initial warning, to give a solid chloride of x. The solid chloride sublimes at 180 0 C. The chloride vapour has a relative molecular mass of 267 but at much higher temperatures it is known to disdociate to a single compound of relative molecular mass 133.5. When an aqueous solution of the chloride ...