Any compound MUST be made up of atoms of more that one type - otherwise they are not compounds. The only common characteristic of organic compounds is that they contain atoms of carbon, but a lump of pure carbon need not be organic.
Carbon is present in all organic compounds.
Here, skeleton is a figure of speech. From a biology website: "a hydrogen atom is bonded to an oxygen atom, which in turn is bonded to the carbon skeleton of an organic molecule."
All organic molecules contain carbon atoms.
Sugars and starches are organic compounds. But not all organic compounds are sugars and starches .
Sugars and starch are organic compounds. But all organic compounds are not made of sugars and starch.
Organic substances contain carbon and hydrogen atoms. Organic compounds are formed by bonding carbon and hydrogen atoms. There can be more elements too. An atom can never be organic.
carbon and hydrgen atom (Expansion): Organic chemistry is the study of organic compounds. An organic compound is any compound that contains at least one carbon atom, with the exception of several types of molecules including CO and CO^2, which are technically inorganic.
All organic compounds contain carbon.
Organic compounds always contain a carbon atom.
Alcohols.
Ammonia is inorganic. It is a compound made of one nitrogen atom and three hydrogen atoms, and does not contain carbon-hydrogen bonds that are characteristic of organic compounds.
The atom diagnostically associated with organic compounds is carbon. Carbon forms the backbone of organic molecules due to its ability to form strong covalent bonds with other carbon atoms and with other elements. The presence and arrangement of carbon atoms largely determine the properties and functions of organic compounds.