Which of the compounds (A-D) depicted above i | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) hemiacetal is a functional group characterized by a carbon atom bonded to both an $-OH$ group and an $-OR$ group (where $R$ is an alkyl or aryl gr

Vedclass · Accepted Answer

Compound $C$

Vedclass · Answer

(C) hemiacetal is a functional group characterized by a carbon atom bonded to both an $-OH$ group and an $-OR$ group (where $R$ is an alkyl or aryl group).In the provided structures:Compound $A$ is a disaccharide (like lactose or cellobiose) containing a hemiacetal group at the anomeric carbon of one of the sugar units.Compound $B$ is a disaccharide (like sucrose) where both anomeric carbons are involved in the glycosidic linkage,meaning it has no hemiacetal group.Compound $C$ is an alkyl glycoside,which is an acetal,not a hemiacetal.Compound $D$ is a trisaccharide containing a hemiacetal group at the reducing end.Since the question asks which is $NOT$ a hemiacetal,and both $B$ and $C$ lack a hemiacetal group,the provided options are ambiguous. However,based on standard chemistry curriculum,sucrose $(B)$ and alkyl glycosides $(C)$ are acetals. Given the options,if only one must be chosen,$C$ is a clear acetal. Re-evaluating the structures,$B$ is a non-reducing sugar (acetal),and $C$ is an acetal. Since the question implies a single answer,and $B$ and $C$ are both acetals,the question is flawed. Assuming the intended answer is $C$ as a simple acetal.

Which of the compounds $(A-D)$ depicted above is $NOT$ a hemiacetal linkage?

Similar Questions

Which reaction proves that all the six carbon atoms are linked in a straight chain in glucose?

What are $\beta - D - \text{glucose}$ and $\beta - D - \text{galactose}$ known as in relation to each other?

Compound $A$ gives $D$-Galactose and $D$-Glucose on hydrolysis. The compound $A$ is:

Blood sugar is the same as

Which one of the statements concerning the equilibrium shown is true?

Vedclass Test Series

Exam Paper Generator

Online Exam Module