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The answer says 3-bromo-1-iodocyclohexane, but I got 1-bromo-3-iodocyclohexane because I thought you are supposed to give the lower number to the first alphabetical substituent when the numbers are the same either way.
You give the lower number to the first alphabetical substituent only when the two substituents are connected by the same kind of atom. For example, in 1-ethyl-2-methylcyclopentane, you give the one to the alphabetically first substituent because they are both connected by a C atom (when you go down the side chain, the first thing you encounter is a C).
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