Label each pair of stereoisomers below as: a. enantiomers b. diastereomers C. identical Place the letter of the correct answer in the blank to the left of the pair of stereoisomers. H₂C OH H₂C ОНН H CH₂OH HO H enantiomers diastereomers HO CH₂OH
Carbohydrates
Carbohydrates are the organic compounds that are obtained in foods and living matters in the shape of sugars, cellulose, and starch. The general formula of carbohydrates is Cn(H2O)2. The ratio of H and O present in carbohydrates is identical to water.
Starch
Starch is a polysaccharide carbohydrate that belongs to the category of polysaccharide carbohydrates.
Mutarotation
The rotation of a particular structure of the chiral compound because of the epimerization is called mutarotation. It is the repercussion of the ring chain tautomerism. In terms of glucose, this can be defined as the modification in the equilibrium of the α- and β- glucose anomers upon its dissolution in the solvent water. This process is usually seen in the chemistry of carbohydrates.
L Sugar
A chemical compound that is represented with a molecular formula C6H12O6 is called L-(-) sugar. At the carbon’s 5th position, the hydroxyl group is placed to the compound’s left and therefore the sugar is represented as L(-)-sugar. It is capable of rotating the polarized light’s plane in the direction anticlockwise. L isomers are one of the 2 isomers formed by the configurational stereochemistry of the carbohydrates.
![**Labeling Stereoisomers: An Educational Exercise**
In this exercise, you will label each pair of stereoisomers with the correct classification. The classifications you will use are:
a. enantiomers
b. diastereomers
c. identical
**Instructions:**
Place the letter of the correct classification in the blank to the left of each pair of stereoisomers.
**Stereoisomer Pair:**
The images display the structural formulas of two molecules. Both molecules contain an arrangement of the following groups: a methyl group (\( \text{CH}_3 \)), a hydroxyl group (\( \text{OH} \)), a hydrogen atom (\( \text{H} \)), and a hydroxymethyl group (\( \text{CH}_2\text{OH} \)). Below are the detailed structures:
1. First molecule structure:
- Carbon center bonded to \( \text{H}_3\text{C} \) (top-right)
- \( \text{H} \) (top-left)
- \( \text{OH} \) (center-right)
- \( \text{HO} \) (center-left)
- \( \text{CH}_2\text{OH} \) (bottom-right)
- \( \text{H} \) (bottom-left)
2. Second molecule structure:
- Carbon center bonded to \( \text{H}_3\text{C} \) (top-left)
- \( \text{OH} \) (top-right)
- \( \text{H} \) (center-right)
- \( \text{HO} \) (center-left)
- \( \text{CH}_2\text{OH} \) (bottom-right)
- \( \text{H} \) (bottom-left)
**Choose the correct classification for the stereoisomers:**
- **Enantiomers:** Non-superimposable mirror images.
- **Diastereomers:** Stereoisomers that are not mirror images.
- **Identical:** Identical in all aspects.
____ [Blank for classification]
**Answer Choices:**
- ○ Enantiomers
- ○ Diastereomers
- ○ Identical](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5dad743c-ee0b-4240-a1ae-7d99106136e7%2F3907120d-24ce-4f6c-a6c1-07aa070ef11e%2F4gep0j5_processed.jpeg&w=3840&q=75)
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