MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryBiomoleculesPrevious Year Questions

A certain compound gives negative test with ninhydrin and positive test with Benedict’s solution, it is (KCET 2013)

A.an amino acid

B.a monosaccharide✓ Correct

C.a lipid

D.a protein

Explanation

Monosaccharides give positive test with Benedict’s solution because they are reducing sugars but they give negative test with ninhydrin because this test is performed by proteins, peptides and amino acids.

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