MCQ
A certain compound gives negative test with ninhydrin and positive test with Benedict's solution. The compound is
- AA protein
- ✓A monosaccharide
- CA lipid
- DAn amino acid
✓
Answer
Correct option: B.
A monosaccharide
b
(b) Protein gives blue-violet colour with ninhydrin ($2$, $2$ - dihydroxyindane - $1$, $3$ -diene)
(b) Protein gives blue-violet colour with ninhydrin ($2$, $2$ - dihydroxyindane - $1$, $3$ -diene)
Carbohydrates gives brown red ppt. with benedict’s solution ($Alk$. $CuS{O_4} + $ Citrate ions)
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