CMC Medical CMC-Medical VELLORE Solved Paper-2015

  • question_answer
    White precipitates is formed in

    A)  ninhydrin test

    B)  xanthoprotic test

    C)  Millons test

    D)  Biuret test

    E)  None of the above

    Correct Answer: C

    Solution :

                    White precipitate is formed in Millons test. ?                   In this test, the compound (protein) is mixed with \[HN{{O}_{3}}\] ?                   The complex with Hg(I) and Hg(II) ions ?                   Red precipitate is obtained ?                   If the protein contain tyrosine, sometime initially a white precipitate is formed which turns red on ?                   So, precaution has to be taken to check white precipitate


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