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Explain why the boiling point of br2 (59°c) is lower than that of iodine monochloride, icl (97°c), even though they have nearly the same molar mass.

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Kalahira
The boiling point of bromine (br2) is lower than iodine monochloride (icl) because icl molecules have a higher melting point. Also, the atoms of iodine monochloride have more electrons causing the intermolecular forces between iodine forces to be stronger. As the iodine forces are stronger, the boiling point will be higher.