2. Solved Papers
  3. JEE Main & Advanced

JEE Main & Advanced JEE Main Paper (Held On 10-Jan-2019 Evening)

  • question_answer
    Which of the following- test cannot be used for identifying amino acids? [JEE Main Online Paper (Held On 10-Jan-2019 Evening]

    A) Ninhydrin test                

    B) Barfoed lest

    C) Xanthoproteic test                      

    D) Biuret test

    Correct Answer: B

    Solution :

    Ninhydrin, xantho proteic and biuret test is used for test of protein and amino acid but barfoed?s test is used to detect the presence of monosaccharide (reducing). \[Monosaccharide~~\xrightarrow[\begin{smallmatrix}  + \\  Copper\,II\,Acetate  \\  (Barfoed\,reagetn) \end{smallmatrix}]{ethonic\,acid}\,\,Red\text{ }colour\]


You need to login to perform this action.
You will be redirected in 3 sec spinner