We're now going to take a look at the functional groups with carbonyls. Remember, a carbonyl group is just C=O. We're going to say these types of functional groups share some similarities with those without carbonyls. What we have written in red is what that functional group represents. The things around it may change, but as long as you have that portion in red there, that's the functional group.
If we take a look at the first one, we have C=O connected to an OH group that represents what we call a carbasilic acid. So this is a carbacillic acid. For the next one we have C=O connected to O and then connected to AC. That is what we call an Ester. Next we have C=O directly bonded to a nitrogen that is an amide or amide. So both pronunciations are OK. So you might hear it as an amide or an A mide, Same thing.
Next we have AC=O connected directly to an H. We call this an aldehyde. And then finally you have AC=O with a carbon on each side that represents A ketone. So remember, all of these particular functional groups have the presence of a carbonyl group, and what is marked in red represents that specific functional group.