All the compounds are inorganic Except:
Correct answer: D. (NH2)CO
- A. CaCO3
- B. CAC2
- C. KCN
- D. (NH2)CO
Explanation
(NH2)CO (urea): This compound is organic as it contains carbon-hydrogen (C-H) bonds and is commonly found in biological systems. Therefore, the correct answer is "(NH2)CO" as it is the only compound among the given options that is organic.
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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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