Why does CH3NH2 have a higher melting point than CH3I?
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CH3NH2 exhibits hydrogen bonding which is not found in CH3I.
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Hydrogen bonding is almost always the answer to these types of question.
It doesn't work in this case because Methyl amine melts at a LOWER temperature.
It doesn't work in this case because Methyl amine melts at a LOWER temperature.