Which one of the following is not a organic compound?
Correct answer: C. Carbon dioxide
- A. Urea
- B. Methane
- C. Carbon dioxide
- D. Coal
Explanation
Organic compounds of carbon are classified as organic when carbon is bound to hydrogen. Organic molecules must contain carbon atoms covalently bonded to hydrogen atoms.
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About Classification of Organic Compounds
Organic compounds are classified by carbon skeleton into open-chain, branched-chain and cyclic compounds, including homocyclic and heterocyclic types. The classification also uses functional groups to distinguish hydrocarbons, halo compounds, alcohols, aldehydes, ketones, carboxylic acids and their derivatives, which is different from naming compounds by IUPAC rules.
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