Question

actose otum 2) Barfoed's test is used to distinguish monosaccharides from dissacharides. Monosaccharides react with the abdom copper-containing reagent to produce a red copper-containing precipitate. Which of these sugars do you predict will form a red precipitate? 3) Benedict's test can distinguish between reducing sugars and non-reducing sugars. Reducing sugars react with the reagent to produce a yellow, green, or red precipitate. Which sugar(s) used in this experiment do you predict will form a precipitate? 4) Seliwanoff's test distinguishes ketoses from aldoses. Ketoses react more quickly with the reagent than aldoses to produce a deep red color in the mixture. Which sugar(s) used in this experiment do you predict will cause the color change?

Answer 1

Dear student,

2. Following sugars form red precipitate -

Glucose, Fructose, Galactose .

3. Following sugars form precipitate -

Glucose, Fructose, Maltose , Lactose

4. Following sugars change the color -

Sucrose, Fructose.

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With regards.