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Questions and Answers
In a D-sugar, the OH group is attached to which side of the chiral carbon?
In a D-sugar, the OH group is attached to which side of the chiral carbon?
- Below
- Above
- Left
- Right (correct)
What term is used to describe the relationship between D and L forms of sugars?
What term is used to describe the relationship between D and L forms of sugars?
- Constitutional isomers
- Geometric isomers
- Enantiomers (correct)
- Cis-trans isomers
Which of the following statements is true regarding L-sugars?
Which of the following statements is true regarding L-sugars?
- Their OH group is attached to the left side of the chiral carbon. (correct)
- Their OH group is attached to the right side of the chiral carbon.
- They have identical configurations as D-sugars.
- They are diastereomers of D-sugars.
What distinguishes D-sugars from L-sugars in terms of their chiral carbon configuration?
What distinguishes D-sugars from L-sugars in terms of their chiral carbon configuration?
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Which type of isomerism characterizes the relationship between D and L forms of sugars?
Which type of isomerism characterizes the relationship between D and L forms of sugars?
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Study Notes
Optical Stereoisomers of Sugars
- D-sugars are a type of optical stereoisomer, characterized by the OH group attached to the chiral carbon being on the right side.
- L-sugars are also a type of optical stereoisomer, characterized by the OH group attached to the chiral carbon being on the left side.
- The D and L forms of sugars are differentiated based on the orientation of the OH group attached to the chiral carbon.
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