CEE Kerala Engineering CEE Kerala Engineering Solved Paper-2011

  • question_answer
    For preparing an alkane, a saturated solution of sodium or potassium salt of a carboxylic acid is subjected to

    A)  hydrolysis         

    B)         oxidation

    C)  hydrogenation   

    D)        hydration

    E)  electrolysis

    Correct Answer: E

    Solution :

    When an concentrated aqueous solution of the sodium or potassium salt of a monocarboxylic acid is electrolyzed, an alkane is produced as shown below \[\underset{sod.\text{ }ethanoate}{\mathop{2C{{H}_{3}}COONa}}\,+2{{H}_{2}}\text{O}\xrightarrow{Electrolysis}\underset{ethane}{\mathop{C{{H}_{3}}C{{H}_{3}}}}\,\]                                \[+2NaOH+{{H}_{2}}+2C{{O}_{2}}\]


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