Multiple choice

Tyrosine gives colour in which of following reactions?

  1. Xanthoproteic reaction

  2. Milons reaction

  3. Folin coicalteau's test

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Tyrosine contains a phenolic hydroxyl group that undergoes multiple color reactions: xanthoproteic reaction (nitration gives yellow color), Millon's reaction (mercuric sulfate gives red color), and Folin-Ciocalteu test (phosphomolybdic-phosphotungstic acid gives blue color). All these reactions detect the phenolic group in tyrosine.

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