In maltose structure which 2 groups are there

Options

A. acetal,ketal
B. hemiacetal,acetal
C. hemiacetal,ketal
D. hemiacetal, hemiketal

Answer

To determine which two groups are present in the structure of maltose, we can follow these steps:

### Step 1: Understand the Structure of Maltose
Maltose is a disaccharide composed of two glucose units. It contains glycosidic linkages and hydroxyl (OH) groups.

### Step 2: Identify the Functional Groups
In the structure of maltose, we need to identify the types of functional groups present. The two main groups to focus on are:
- Hemiacetal
- Acetyl

### Step 3: Analyze the Glycosidic Linkage
Maltose has a glycosidic bond formed between two glucose units. This bond involves an oxygen atom linking the two units. The presence of both an OH group and an OR group (where R is a carbon chain) indicates the presence of a hemiacetal.

### Step 4: Confirm the Presence of Acetyl
In addition to the hemiacetal group, there is also an acetyl group present in maltose. This is characterized by the presence of an acyl group (a carbonyl group attached to a carbon chain).

### Step 5: Conclusion
Based on the analysis, the two groups present in the structure of maltose are:
- Hemiacetal
- Acetyl

Thus, the correct answer is option B: hemiacetal and acetyl.

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