Question

The correct IUPAC name of $C{H}_{3}C{H}_{2}COOH$ is :

• A. ethyl formic acid
• B. ethyl carboxylic acid
• C. ethane methanoic acid
• D. propanoic acid

Answer 1

Answer: (D)

For carboxylic acid $-\underset{\stackrel{||}{O}}{C}-O-H$
General name
Alkane $-e+$ ioc acid $\to$ alkanoic acid
$\stackrel{3}{C}{H}_3{\stackrel{2}{C}}_2{H}_2\stackrel{1}{C}OOH$
IUPAC = Propanoic acid
Common name = Propionic acid