Wohler prepared urea in laboratory for the first time in _ ?
Correct answer: D. 1828
- A. 1900
- B. 1829
- C. 1850
- D. 1828
Explanation
In 1828, Wohler synthesized urea by slowly evaporating a water solution of ammonium cyanate, which he had prepared by adding silver cyanate to ammonium chloride. So, option D is accurate.
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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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