Question

What are aldehydes and ketones?

Answer 1

Aldehydes and ketones are organic compounds that contain a carbonyl group, `"C=O"`, attached only to carbon or hydrogen atoms.

Explanation:

A ketone has only carbon atoms attached to the carbonyl group, `"R(C=O)R'"`.

Examples are

In an aldehyde, at least one of the atoms attached to the carbonyl group is a hydrogen atom [`"R(C=O)H"` or `"H(C=O)H"`].

Examples are

(From www.emaze.com)