Q11. Which of the following is the functional group for ethanoic acid?

Q11. Which of the following is the functional group for ethanoic acid?
Ethanoic acid is a carboxylic acid. The functional group for carboxylic acids is the carboxyl group, which is $-\text{COOH}$.

• A. $\text{C}=\text{C}$ is an alkene functional group.
• B. $\text{C}\equiv\text{C}$ is an alkyne functional group.
• C. $-\text{OH}$ is an alcohol functional group.
• D. $-\text{COOH}$ is a carboxylic acid functional group.

The correct option is D.

$$\boxed{\text{D. COOH}}$$

Q12. The correct name for the alkene $\text{CH}_3CH_2\text