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of each other. 36.) Glucose and galactose are A) anomers B) enantiomers C) epimers D) cis-trans...
of each other. 36.) Glucose and galactose are A) anomers B) enantiomers C) epimers D) cis-trans isomers of D-glucose. 37.) D-galactose and D-talose are A) diastereomers B) epimers C) enantiomers D) cis-trans isomers
What term describes the relation between the pair of sugars below (circle your answer): 1. D-Glucose and D-Talose A. Diasteriomers B. Anomers C. Epimers D. Enantiomers E. Not isomers 2. D-Allose and D-Altrose A. Diasteriomers B. Anomers C. Epimers D. Enantiomers E. Not isomers 3. D-Ribose and D-Talose A. Diasteriomers B. Anomers C. Epimers D. Enantiomers E. Not isomers 4. α-D-glucopyranose and β-D-glucopyranose A. Diasteriomers B. Anomers C. Epimers D. Enantiomers E. Not isomers
Which of the following are epimers? a) glucose and fructose, b)glucose and galactose, c) galactose and mannose, OR d) lactose and maltose
Q1.The structures below are: (2pts) A) Enantiomers B) Cis-trans isomers C) Structural isomers D) Both A and B
10. The structure of glucose is listed below. Draw C-3 and C-5 epimers CHO 11. Consider the six compound pairs below and label them as enantiomers, epimers, diastereomers, but not epimers, constitutional isomers, or identical compounds. ???? -? a. A and Bb. Aand C c. Band C d. Aand D e. Eand F
Ch. 15 Carbohydrates 1) How many stereocenters are in: a) Glucose b) Fructose c) Galactose 2) Area-D-glucose and B-D-glucose anomers? Are they enantiomers? Explain 3) Draw Haworth structure of B-D-galactose and B-D-fructose. 4) Convert each Haworth projection to a Fisher projection
Molecules that differ in configuration CANNOT be: a. stereoisomers b. cis-trans isomers c. chiral centers that are mirror images of each other d. enantiomers e. chiral centers that can be interchanged by rotation of a single bond
4) What term describes the structural relationship between cis-1,2-dimethylcyclopentane and trans-1,3-dimethylcyclopentane? A) not isomers B) constitutional isomers C) enantiomers D) diastereomers E) conformers 5) How many asymmetric carbons are present in the compound below? CH H (CH)CH A)0 B) 1 C) 2 D) 3 E) 4 6) What term describes the structural relationship between (2R,3R,4S)-2,3,4-trichloroheptane and (25,3S,4R)-2,3,4-trichloroheptance? A) not isomers B) constitutional isomers C) enantiomers D) diastereomers E) conformers
Cis-, trans- isomers to 2,3 dibromo-3-phenylpropanoic represents the (D,L) optical isomers (enantiomers) respectively. True False
questions 29 & 30 28 Я B Cis-trans isomers are diastereomers enantiomers stereoisomers constitutional isomers More than one of these choices 29 Pairs of enantiomers are CH3 H. CC CH2CH2CH3 CHE CH CH.CH2CH3 HCC CH2CH2CH3 CH2CH.CH HACCI CHCI HH CH2CH.CH IV I, I and III, IV III, IV IV, V None of the structures. 30 (R)-2-Chlorobutane is represented by CH3 CH3 CH2CH3 CHCI Нccici--cн, Насісін, сісі HH CH.CH, CH.CH CH.CH CH.CH BEKIODIC IVBTE OLIHE ETENEK А | DIV E v