354 Exploring Chemistry 7. Draw the ring structures of the following compounds: glucose, fructose, lactose, and sucrose. 8. Predict whether or not a reaction will occur. Write the predicted results (time, color, etc.,) for positive results or NR for no reaction. a. Sucrose - Barfoed's reagent Fehling's b. Fructose- reagent c. Glucose Seliwanoff's reagent d. Fructose Seliwanoff's reagent e. Lactose Barfoed's reagent f. Sucrose 12 solution & Starch 1. hydrolysis 2. 12 solution