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explain why the boiling point of Br2 (59 degrees C) is lower than that of iodine

ID: 750128 • Letter: E

Question

explain why the boiling point of Br2 (59 degrees C) is lower than that of iodine monochloride, ICl (97 degrees C), even thought they have nearly the same molar mass A: Br2 is larger the ICl B: ICl is ionic C: the molar mass dependence of a liquid's boiling point is not an absolute rule, and it should not be applied to all compounds D: it is impossible to say without further informations E: the molar mass is not identical, the molar mass of Br2 is only 159.80 g/mol compared to 162.35 g/mol for ICl F: ICl is polar while Br2 is nonpolar

Explanation / Answer

F: ICl is polar while Br2 is nonpolar