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JEE Main & Advanced Chemistry Aldehydes, Ketones Question Bank Properties

  • question_answer
    Aldehyde turns pink with             [Bihar MEE 1997]

    A)                 Benedict solution            

    B)                 Schiff reagent

    C)                 Fehling solution               

    D)                 Tollen's reagent

    E)                 Mollisch reagent

    Correct Answer: B

    Solution :

               \[\underset{\text{(Pink)}}{\mathop{\text{Schiff }\!\!'\!\!\text{ s}\,\,\text{reagent}}}\,\xrightarrow{S{{O}_{2}}}\text{Colourless}\]\[\xrightarrow{\text{Aldehyde}}\text{Pink}\,\,\text{colour}\]


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