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NEET Sample Paper NEET Sample Test Paper-85

  • question_answer
    An organic compound X on treatment with pyridinium chlorochromate in dichloromethane   gives compound Y. Compound Y reacts with \[{{I}_{2}}\]and alkali to form triiodomethane. The compound 'X' is

    A) \[{{C}_{2}}{{H}_{5}}OH\]     

    B)        \[C{{H}_{3}}CHO\]

    C) \[C{{H}_{3}}COC{{H}_{3}}\] 

    D)        \[C{{H}_{3}}COOH\]

    Correct Answer: A

    Solution :

    [a] \[X\xrightarrow{PCC}Y\xrightarrow{{{I}_{2}}/alkali}CH{{I}_{3}}\] Compund Y must give iodoform test. Further since Y is obtained by the oxidation of X which must be an alcohol \[(C{{H}_{3}}C{{H}_{2}}OH)\] and thus Y is \[C{{H}_{3}}CHO.\]


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