CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2006

  • question_answer
    Acrolein test is positive for :

    A)  polysaccharides              

    B)  proteins

    C)  oils and fats      

    D)  reducing sugars

    Correct Answer: C

    Solution :

    When fat is heated in presence of \[KHS{{O}_{4}}\](dehydrating agent) the glycerol portion of the molecule is dehydrated and form unsaturated aldehyde \[C{{H}_{2}}=CH-CHO\](acrolein), a bed smelling compound. It is the test for fat.


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