| Acyl: RCO-, Alkyl: R-, Difference: Acyl contains a carbonyl group (C=O). |
| Acyl: R-, Alkyl: RCO-, Difference: Alkyl contains a carbonyl group (C=O). |
| Acyl: ROH, Alkyl: R-, Difference: Acyl contains a hydroxyl group (OH). |
| Acyl: RCO-, Alkyl: ROH, Difference: Alkyl contains a hydroxyl group (OH). |