Write the IUPAC name of the structural formulae.
`CH_(3)-CH_(2)-underset(OH)underset(|)(CH)-CH_(3)`

Explanation

The number of carbon atoms in the longest chain : 4
Parent alkane : Butane
Functional group : -OH (ol)
Assign the number : `2 " " overset(4)CH_(3)-overset(3)CH_(2)-underset(OH)underset(|)overset(2)(CH)-overset(1)CH_(3)`
The carbon atom to which the -OH group is attached is numbered as `C_(2)`.
If the carbon chain of the compound contains a -OH group, then change the ending 'e' of the parent name, i.e. 'e' of butane is replaced by 'ol' (ol for alcohol). ltbr. Parent suffix : Butan -2-ol
IUPAC name : Butan-2-ol.