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NEET Chemistry Organic Chemistry: Some Basic Principles & Techniques / कार्बनिक रसायन : कुछ मूलभूत सिद्धांत एवं तकन Question Bank Self Evaluation Test - Organic Chemistry - Some Basic Principles & Techniques

  • question_answer
    \[{{C}_{6}}{{H}_{5}}CHO+HCN\xrightarrow{{}}{{C}_{6}}{{H}_{5}}-\underset{H}{\overset{H}{\mathop{\underset{|}{\overset{|}{\mathop{C}}}\,}}}\,-CN\] The product would be 

    A) a racemate

    B) optically active

    C) a meso compound

    D) a mixture of diastereomers

    Correct Answer: A

    Solution :

    [a] 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 of the aldehyde group with equal ease, therefore, a 50:50 mixture of the two enantiomers, i.e. a racemic mixture is obtained.


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