Biochem Experiments 13 and 14

Lab Activity 13 is here...

14 is here...

Test for Reducing Sugars

All monosaccharides and disaccharides, except sucrose, are reducing sugars. This means they reduce oxidizing agent-containing reagents like Tollen's, Fehling's and Benedict's.

The following video clip shows the difference in the manner sucrose and glucose react with Fehling's reagent...

For My Organic Chemistry Class (BSND1)

Lab Activity No. 5: Test for Unsaturation: Differentiating Alkanes from Alkenes

Because an alkene contains at least 1 double bond in its structure, it is classified as unsaturated. Bromine (Br2) is used to determine whether an unknown hydrocarbon is saturated (alkane) or unsaturated (alkene or alkyne). The following video clip shows the difference in the manner cyclohexane and cyclohexene react with bromine.





Questions: (Please use 1 short-sized bond paper to copy and briefly answer the following questions.)

1. Describe the difference in the reactions of cyclohexane and cyclohexene with bromine. What does this difference imply?

2. What kind of reaction occurs when Br2 is reacted with cyclohexene?

3. Complete the following reactions. Illustrate and name the structures of the product/products formed.

Biochem Midterm Laboratory Activities

you may now download lab activities 7 to 12 here...