1mL of Benedict's reagent is added to 1mL of the test solution. The mixture is then heated for 5 minutes in water bath. Appearance of reddish-brown precipitates indicates the presence of a reducing sugar. Glucose and Fructose give a positive result. Sucrose on the other hand gives a negative result. Explain why sucrose give a negative result when subjected to a Benedict's test.
1mL of Benedict's reagent is added to 1mL of the test solution. The mixture is then heated for 5 minutes in water bath. Appearance of reddish-brown precipitates indicates the presence of a reducing sugar. Glucose and Fructose give a positive result. Sucrose on the other hand gives a negative result. Explain why sucrose give a negative result when subjected to a Benedict's test.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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1mL of Benedict's reagent is added to 1mL of the test solution.
The mixture is then heated for 5 minutes in water bath.
Appearance of reddish-brown precipitates indicates the presence of a reducing sugar.
Glucose and Fructose give a positive result. Sucrose on the other hand gives a negative result.
Explain why sucrose give a negative result when subjected to a Benedict's test.
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