Manipal Engineering Manipal Engineering Solved Paper-2012

  • question_answer
    In the conversion of ethanol into methanol which of the following reagents will be used?

    A) \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}/{{H}_{2}}S{{O}_{4}}\]        

    B) \[NaOH+CaO\]

    C) \[C{{l}_{2}}+aq.KOH\]

    D)        All of these

    Correct Answer: D

    Solution :

    \[C{{H}_{3}}C{{H}_{2}}OH\xrightarrow[{{K}_{2}}C{{r}_{2}}{{O}_{7}}/{{H}_{2}}S{{O}_{4}}]{[O]}C{{H}_{3}}CHO\] \[\xrightarrow[{{K}_{2}}C{{r}_{2}}{{O}_{7}}/{{H}_{2}}S{{O}_{4}}]{[O]}C{{H}_{3}}COOH\xrightarrow[\Delta ]{NaOH+CaO}\] \[C{{H}_{4}}\xrightarrow{C{{l}_{2}}}C{{H}_{3}}Cl\xrightarrow[-KCl]{aq.\,\,KOH}C{{H}_{3}}OH\]


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