The carbohydrate shown has [Select] carbon atoms. The carbons atoms are labeled 1-6. Which of these carbons is the carbonylic carbon, which has two oxygen atoms attached? [Select] 6 CH₂OH 5 OH -I H 14 OH HO 13 H chiral H 2 CH₂OH 1
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.
![The carbohydrate shown has [Select] chiral carbon atoms. The carbon atoms are labeled 1-6. Which of these carbons is the carbonyl carbon, which has two oxygen atoms attached? [Select]
**Diagram Explanation:**
This is a structural diagram of a cyclic carbohydrate. It features a six-membered ring, typically indicative of a pyranose form.
- **Carbon Atoms (Labeled in Red 1-6):**
- Carbon 1 is part of the ring and attached to CH₂OH.
- Carbon 2 is attached to a hydrogen and a hydroxyl group (OH).
- Carbon 3 is attached to hydrogen and a hydroxyl group.
- Carbon 4 is attached to hydrogen and a hydroxyl group.
- Carbon 5 is part of the ring and connected to an external CH₂OH group.
- Carbon 6 is outside the ring and part of a CH₂OH group.
- **Key Features:**
- An oxygen atom is part of the ring between Carbons 1 and 5.
- Hydroxyl groups (OH) are attached to Carbons 2, 3, 4, and 5, creating possible chiral centers.
The carbonyl carbon would typically be the one that forms a double bond with an oxygen atom, however, in this cyclic form, it has reacted to form an ether linkage (part of the ring), usually at Carbon 1.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0283806f-7d96-4577-94dc-5abd87f2bb3a%2F73f9583b-0b66-4d38-a281-9cffc5816fb9%2F4xb3u2_processed.jpeg&w=3840&q=75)
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