Identify the Functional Groups
Common Questions
What is a functional group?
A functional group is a specific arrangement of atoms within a molecule that determines its chemical reactivity and properties. Examples include hydroxyl (-OH), carbonyl (C=O), carboxyl (-COOH), and amino (-NH2) groups.
What are the most common functional groups in organic chemistry?
Key groups include: alcohol (-OH), aldehyde (-CHO), ketone (C=O), carboxylic acid (-COOH), ester (-COOR), amine (-NH2), amide (-CONH2), ether (-O-), alkene (C=C), alkyne (C≡C), and halide (-X).
How do you identify functional groups in a molecule?
Look for heteroatoms (O, N, S, halogens) and multiple bonds (double, triple). Each distinct pattern corresponds to a functional group. A molecule can contain multiple functional groups simultaneously.
What is the difference between an aldehyde and a ketone?
Both contain a carbonyl (C=O). An aldehyde has the carbonyl at the end of a carbon chain (bonded to at least one hydrogen). A ketone has the carbonyl between two carbon groups (no hydrogen on the carbonyl carbon).