A certain compound gives a negative test with | vedclass

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(B) Ninhydrin ($2, 2-$dihydroxyindane$-1, 3-$dione) reacts with amino groups in proteins and amino acids to produce a blue-violet color. Since the com

Vedclass · Accepted Answer

$A$ monosaccharide

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(B) Ninhydrin ($2, 2-$dihydroxyindane$-1, 3-$dione) reacts with amino groups in proteins and amino acids to produce a blue-violet color. Since the compound gives a negative test with ninhydrin,it does not contain free amino groups.Benedict's solution ($alkaline \ CuSO_4$ and citrate ions) reacts with reducing sugars (monosaccharides and some disaccharides) to produce a reddish-brown precipitate of $Cu_2O$.Therefore,a compound that is negative for ninhydrin and positive for Benedict's solution is a monosaccharide.

$A$ certain compound gives a negative test with ninhydrin and a positive test with Benedict's solution. The compound is:

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