Assuming ideal behavior, what is the boiling point of a solution of 6.04 g of nonvolatile Br 2 in 67.8 g of benzene (molar mass of benzene zene=78.11 g/mol) ? (For benzene , Tb = 80.1 degrees * C and Kb=2.53 ^ C/m)

Ch4 and ph3 are both covalent since they are composed both of non-metals.    ch4 is non- polar because of  london forces and has a geometry of tetrahedral  ph3 , on the other hand, is umbrella shaped polar and has dipole-dipole intermolecular force (imf) . since ph3 is polar, it has a stronger imf   

Um i think answer is a

Ithink a i think i tried i hope that : )