How can I identify functional groups?
You mean how you can spot one on a compound? It's merely the part of the compound that branches away from the main chain.
Let's say you had this, N,N-dimethylacetoacetamide:
You could say that the main chain is the carbon attached directly to the nitrogen from the left (carbon-1) all the way to the far left carbon (carbon-4).
Then, the carbonyl groups would be the
If you want to be able to remember these, try quizzing yourself with flash cards.