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Exam 25: Carbohydrates

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Question 31

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The anomer of ribose is drawn is _______. (alpha or beta)

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Question 32

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_____ is the change in specific rotation that accompanies the interconversion of α and β anomers in an aqueous solution.

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Question 33

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Starch, cellulose, and surcrose are all classified as polysaccharides.

The fundamental difference between the monosaccharide, disaccharide, and polysaccharide classifications of carbohydrates is the number of _________________present.

Which of the following represent a ketose?

What are the major organic products obtained from treatment of a methyl glycoside with periodic acid in water?

What are the major organic products obtained from treatment of a 1,2,3-triol with periodic acid in water?

What are the two major organic products obtained from treatment of an α-hydroxyketone with periodic acid in water?

What are the R/S stereochemical designations of C2 and C3 of L-threose?

Which of the following represent an aldose?

Match the following compounds used to produce rayon and acetate rayon with the most appropriate roles. -Forms acetate rayon on precipitation

Match the following compounds used to produce rayon and acetate rayon with the most appropriate roles. -Hydrolyzes the xanthate ester group

The textile cellulose acetate is produced by treatment of cellulose with acetic anhydride. What type of functional group is introduced on the cellulose under these conditions?

Which of the following has a D-configuration?

The following structure shows the correct assignment of the R or S configuration to each chirality center in sorbose.

The number of hydroxyl groups in the pyranose form of glucose is _____.

What is the major organic product obtained from the following reaction?

The following compound will react with Tollens' solution.

What are the two major organic products obtained from the following reaction? What is the relationship between them? (What type of isomers are they?)

Match the following compounds used to produce rayon and acetate rayon with the most appropriate roles. -Treats materials containing cellulose