Write the structures of different isomeric alkyl groups corresponding to the molecular formula `C_(5)H_(11)`. Also give the `IUPAC` names of alochols obtained by attachment of the `-OH` groups to these groups.
Strategy: There are three different skeletons of five `C` atoms. Pentane has three different type of `H` atoms, isopentane has four different types of `H` atoms, and neopentane has only one type of `H` atoms.