Question

Name the functional groups present in the following compounds:
(a) ${\text{CH}}_3{\text{COCH}}_2{\text{CH}}_2{\text{CH}}_2{\text{CH}}_3$
(b) ${\text{CH}}_3{\text{CH}}_2{\text{CH}}_2\text{COOH}$
(c) ${\text{CH}}_3{\text{CH}}_2{\text{CH}}_2{\text{CH}}_2\text{CHO}$
(d) ${\text{CH}}_3{\text{CH}}_2\text{OH}$

Answer 1

The functional groups present in the following compounds are as follows:-

1. ${\text{CH}}_3{\text{COCH}}_2{\text{CH}}_2{\text{CH}}_2{\text{CH}}_3$: Since $\text{>CO}$ (carbonyl) group is present and it is of the form $\text{R-CO-R}$, it is a ketone.​​​​​​
2. ${\text{CH}}_3{\text{CH}}_2{\text{CH}}_2\text{COOH}$: Since $\text{–COOH}$ group is present, it is a carboxylic acid.
3. ${\text{CH}}_3{\text{CH}}_2{\text{CH}}_2{\text{CH}}_2\text{CHO}$: Since $\text{–CHO}$ group is present, it is an aldehyde.
4. ${\text{CH}}_3{\text{CH}}_2\text{OH}$: Since $\text{–OH}$ group is present, it is an alcohol.