Write the IUPAC name of the following. CH3-CH3|C|C2H5-C|HOH-CH3

The IUPAC name is 3,3-dimethylpentan-2-ol. The longest continuous chain of C atoms has 5 C atoms. Hence, the parent chain is pentane. An -OH group is present as a substituent on the second C atom and is named as suffix -2-ol where 2 indicates the position of the C atom to which the -OH group is attached. Two methyl groups are present as substituents on the third C atom are named as prefix 3,3-dimethyl where 3 indicates the position of the C atom to which methyl groups are attached. The prefix 'di' indicates 2. The numbering is done from the end which gives the lowest possible locants.