[问答题]
1.Determine the missing name and 7zpcils-.n)blwy 8t)structure using IUPAC nan-zkp*s: ,9sw /rs ojcming rules.
IUPAC Name Structural formula 2,3-dimethylbutane
2.Determine whether the following molecules are primary, secondary or tertiary halogenoalkanes.
Molecule Primary, secondary or tertiary $CH_3CHClCH_2CH_3$
2-bromo-2-methylbutane