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CSS Solved Papers
Physics Chemistry

Entry Test MCQ :: Aromatic Hydrocarbons


  When two or more different substituents are attached with a benzene ring the number 1 position in the ring is given to a high priority group. Which one of the following groups has highest - priority?
[A]. ?NH2[B]. ?CHO
[C]. ?COOH[D]. ?CN

Answer: Option C


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