Uttarakhand PMT Uttarakhand PMT Solved Paper-2007

  • question_answer
    In the reaction \[C{{H}_{3}}CHO+HCN\xrightarrow[{}]{{}}C{{H}_{3}}CH(OH)CN\] A chiral centre is produced. This product would be

    A)  laevo-rotatory  

    B)  meso-compound

    C)  dextro-rotatory

    D)  racemic mixture

    Correct Answer: D

    Solution :

     Since during the reaction, a chiral carbon is created and further since the\[C{{N}^{-}}\]ion can attack the planar aldehyde group both from the top and the bottom face with equal ease, therefore, a\[50:50\]mixture of the two enantiomers e., a racemic mixture is obtained.


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