Question

Which among the following is NOT dicarboxylic acid?

Options

• Adipic acid

• Glutaric acid

• Valeric acid

• Malonic acid

Answer 1

Valeric acid

Explanation:

\[\begin{array}{cc}
\phantom{...}\ce{COOH}\phantom{...........}\ce{COOH}\phantom{..........}\ce{CH3}\phantom{............}\ce{COOH}\phantom{....}\\
\phantom{...}|\phantom{.....................}|\phantom{....................}|\phantom{..................}|\phantom{............}\\
\phantom{...}\ce{(CH2)4}\phantom{...........}\ce{(CH2)3}\phantom{.........}\ce{(CH2)3}\phantom{.........}\ce{CH2}\phantom{........}\\
\phantom{...}|\phantom{.....................}|\phantom{....................}|\phantom{..................}|\phantom{............}\\
\phantom{....}\ce{\underset{Adipic Acid}{COOH}}\phantom{........}\ce{\underset{Glutaric Acid}{COOH}}\phantom{.......}\ce{\underset{Valeric Acid}{COOH}}\phantom{.....}\ce{\underset{Malonic Acid}{COOH}}\phantom{...}
\end{array}\]