Four containers hold different organic substances.
| Container | Formula of substance |
|---|---|
| P | CH3CH2CH2OH\text{CH}_3\text{CH}_2\text{CH}_2\text{OH}CH3CH2CH2OH |
| Q | CH3CH=CH2\text{CH}_3\text{CH}=\text{CH}_2CH3CH=CH2 |
| R | CH3CH2COOH\text{CH}_3\text{CH}_2\text{COOH}CH3CH2COOH |
| S | CH3CH2CH3\text{CH}_3\text{CH}_2\text{CH}_3CH3CH2CH3 |
Which container holds a carboxylic acid?
Container Q
Container S
Container R
Container P