The IUPAC name for is _______:
(i) 1-hydroxypentane-1,4-dione
(ii) 1,4-dioxopentanol
(iii) 1-carboxybutan-3-one
(iv) 4-oxopentanoic acid
The answer is the option (iv) 4-oxo pentanoic acid
Explanation: According to the IUPAC naming, in case of the presence of more than one different type of functional group, one functional group will be taken as the main functional group on a priority basis and is mentioned as a suffix, while the other functional group is written as a prefix.