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### Alkyl halide nomenclature, flouthane [duplicate]

The IUPAC name for flouthane is 2-bromo-2-chloro-1,1,1-triflouroethane. i am confused why did not we assign the numbering to the carbon chain the other way possible that would make the name as 1-bromo-...
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### What is the priority for numbering alkyl side chains?

I'm wondering why the above image is named 5-ethyl-3,3-dimethylheptane rather than 3-ethyl-5,5-dimethylheptane. I thought an ethyl substituent has a higher priority (I know this is true when arranging ...