MCQ
White prepipitate is formed in.
- AMillon's test
- BNinhydrin test
- CBiuret test
- DXanthoprotic test
✓
Answer
- Millon's test
Explanation:
In Millon's test, first the compound (to be tested) i.e, protein is nitrated by HNO3 and then complexed with Hg(I) and Hg(II) ions.
A red precipitate is obtained. However, if the protein contains tyrosine, sometimes initially a white precipitate is formed that turns red on heating.
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