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NEET AIPMT SOLVED PAPER 1999

  • question_answer
                    Which one of the following compounds will react with \[NaHC{{O}_{3}}\] solution to give sodium salt and carbon dioxide?                                                                                                                                                               

    A)              Acetic acid             

    B)              n-hexanol             

    C)              Phenol    

    D)              Both (b) and (c)

    Correct Answer: A

    Solution :

                    Only acetic acid reacts with \[NaHC{{O}_{3}}\] to give sodium salt and \[C{{O}_{2}},\] because \[NaHC{{O}_{3}}\] is a base and it reacts with acid only.                 This is one of the distinguishing test of carboxylic acids.                 \[R-COOH+NaHC{{O}_{3}}\to R-COONa+C{{O}_{2}}+{{H}_{2}}O\]


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