JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2007

  • question_answer
        Which one of the following undergoes reaction with 50% sodium hydroxide solution to give the corresponding alcohol and acid?

    A)  Phenol                                

    B)  Benzaldehyde

    C)  Butanal                               

    D)  Benzoic acid

    Correct Answer: B

    Solution :

                    \[A+NaOH\to alcohol+acid\] Thus it is Cannizaro reaction. A is thus aldehyde without H at\[\alpha -\]carbon. (as\[{{C}_{6}}{{H}_{5}}CHO,\text{ }HCHO\]) \[2{{C}_{6}}{{H}_{5}}CHO+NaOH\xrightarrow[{}]{{}}{{C}_{6}}{{H}_{5}}C{{H}_{2}}OH\] \[+{{C}_{6}}{{H}_{5}}COONa\]


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