# 1. Which of the following is an aldohexose? 2. Which of the following is a cetopentose? 3. Which of the

###### Question:

1. Which of the following is an aldohexose?
2. Which of the following is a cetopentose?
3. Which of the following best describes the relationship between D-glucose and D-fructose?
4. Which of the following is (are) L-alfohexose(s)?
5. Which of the following aldohexose(s) is (are) dextrorotatory?
6. How many stereoisomers are possible for L-galactose? Draw or look for its structure.
7. Which of the following conpounds is a pair of enantiomers?
8. Draw the fisher projection for L-sedoheptulose and also for D-sorbose.
9. How many stereoisomers are possible for D-fructose?
10. Which one of the following is the correct structure for L-fructose?
11. Which one of the following is the correct stereocemical configuration for D-xylose?
12. Which of the following conpound(s) is (are) an epimer(s) of D-glucose?
13. Pyranose forms of monosaccharides are_____.
14. Predict the major product for the following reaction.
15. What is the correct Haworth projection of a-D-glucopyranose?
16.What is the correct name for the following compound?
17. Draw the Fisher projection for open chain form of the following cyclic monosaccharide.
Carbohydrates-Practice questions 1. Which of the following is an aldohexose? a) D-xylose b) D-galactose c) D-fructose d) D-ribose e) D-erythrose 2. Which of the following is a cetopentose? a) b) c) d) e) D-lyxose D-Fructose D-ribose D-glucose D-xylulose 3. Which of the following best describes the relationship between D-glucose and D-Fructose? a) enantiomers b) epimers c) anomers d) constitutional isomers e) diastereomers 4. Which of the following is (are) L-aldohexose(s)? CH OH CH,OH O но -н но- но — H H- OH H- OH OH HOH HO OH снон ін,он CH, OH CH, OH CH OH IV 5. Which of the following aldohexose(s) is (are) dextrorotatory? a) D-glucose b) D-galactose c) D-gulose d) D-mannose e) I can't predict
6. How many stereoisomers are possible for L-galactose? Draw or look for its structure. a) 8 b) 6 c) 10 d) 3 e) 4 7. Which of the following compounds is a pair of enantiomers? T HO— H- H H OH OH CHOH Lon HO- CH OH CH,OH CHOH CH,OH 8. Draw the Fischer projection for L-sedoheptulose and also for D-sorbose.
9. How many stereoisomers are possible for D-Fructose? a) 8 b) 6 c) 10 d) 3 e) 4 10. Which one of the following is the correct structure for L-fructose? OH CH OH H- + OH  F HHHH H- OH - OH H- OH - OH CH.CH CH, OH H- -онно -н OH HOHHOH CH, OH - CHOH OH,OH II. Which one of the following is the correct stereochemical configuration for D-xylose? 25.3R.45 2R 3S,4R 2R 3R.45 25 3S,4R 2S,3S,4S CH, OH 12. Which of the following compound(s) is (are) an epimer(s) of D-glucose? HOH OH HO- T CH, OH 3 CH.CH
13. Pyranose forms of monosaccharides are a) 5-membered cyclic hemiacetals b) 6-membered cyclic acetals c) 5-membered cyclic acetals d) 6membered cyclic hemiacetals 14. Predict the major product for the following reaction. 15. What is the correct Haworth projection for a-D-glucopyranose? doo 16. What is the correct name for the following compound? CH, OH a. D-glucopyranose b. D-allopyranose c. D-glucopyranose d. D-galactopyranose e. D-gulopytanose 17. Draw the Fischer projection for open chain form of the following cyclic monosaccharide.

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