Reducing sugar in urine can be detected by: (A) Benedicts test, (B) Fehling solution, (C) Glucose - oxidase test, (D) All of the above
Answer is D. All monosaccharides are reducing sugars (functional group is free) Tests include : Benedict's test, Fehling's test, Barfoed's test etc. The reduction is much more efficient in the alkaline medium than in the acid medium.