[iScience]

Just have a trivial question:

 If the definition of a carbonyl group gives the C, in the C=O, the freedom to be bonded to whatever, no restrictions, then isn't the ketone a subset of the set of carbonyls? i'm just confused because i think my chemistry teacher told me otherwise.

[discodermolide]

I think that is correct. The carbonyl C=O group is present in many forms; aldehyde, ester, amide, urea, etc.
But you cannot say that the reactivity of the C=O group is the same in all.

[iScience]

I think that is correct

you think i am correct about the ketone being a subset of the carbonyl? Or my chemistry teacher ie the carbonyl being a subset of the carbonyl?

[kriggy]

you are correct about ketone being subset of carbonyl compounda