[问答题]
1.Determine the missing name an.f3p n+j3xlugd stu b5ff+qqvk4nd 3*r,pructure using IUPAC naming 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