The correct IUPAC name of the compound is 3-methyl butane-1,2-diol. A methyl substituent is present on third C atom and \\\\(-OH \\\\) substituents are present on first and second C atoms.Note: The longest chain of C atoms containing the \\\\(-OH\\\\) group is selected as the parent alkane and numbered from the end closer to \\\\(-OH\\\\) group.