AFMC AFMC Solved Paper-2005

  • question_answer
    Salicylic acid is prepared from phenol by:

    A) Reimer-Tiemann reaction

    B) Kolbe's reaction

    C) Kolbe-electrolysis reaction

    D) none of the above

    Correct Answer: A

    Solution :

    Salicylic acid can be prepared from phenol by Reimer-Tiemann reaction But if \[\text{CHC}{{\text{l}}_{\text{3}}}\]is used in place of \[\text{CC}{{\text{l}}_{4}},\]salicylaldehyde is formed  In Kolbe's electrolysis simple hydrocarbons are prepared by using sodium phenoxide. In Koble?s electrolysis simple hydrocarbons are prepared \[\underset{Pot.\,acetate}{\mathop{2RCOOK+}}\,2HOH\xrightarrow{Electrolysis}\underset{Alkane}{\mathop{R-R}}\,+2C{{O}_{2}}\]\[+{{H}_{2}}+2KOH\]


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