NEET Sample Paper NEET Sample Test Paper-70

  • question_answer
    Which reagent can distinguish between pentanoic acid and pentanamide?           

    A) Cold dil. NaOH     

    B)            \[Cold\text{ }dil.\text{ }NaHC{{O}_{3}}\]

    C) \[Cold\text{ }cone.\text{ }{{H}_{2}}S{{O}_{4}}\]

    D) All

    Correct Answer: D

    Solution :

    [a] Amides are hydrolysed by dilute NaOH to give\[N{{H}_{3}}\]. [b] \[NaHC{{O}_{3}}\] reacts with acids to give \[C{{O}_{2}}\] (g). [c] Amides are also hydrolysed in acidic conditions.


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