A bond which is formed between aldehyde or ketone group of monosaccheride and alcoholic group of another organic compound is known as
(a) Peptide bond
(b) glycosidic bond
(c) phosphodiester bond
(d) Ester bond

Options

A. Peptide bond
B. glycosidic bond
C. phosphodiester bond
D. Ester bond

Answer

To solve the question, we need to identify the type of bond formed between the aldehyde or ketone group of a monosaccharide and the alcoholic group of another organic compound.

### Step-by-Step Solution:

1. **Understanding the Components**:
- A monosaccharide can have either an aldehyde group (as in aldoses) or a ketone group (as in ketoses).
- An alcoholic group refers to an -OH (hydroxyl) group present in alcohols or other organic compounds.

2. **Identifying the Bond Formation**:
- When a monosaccharide reacts with an alcohol, a bond is formed between the carbonyl group (aldehyde or ketone) of the monosaccharide and the hydroxyl group of the alcohol.

3. **Naming the Bond**:
- This type of bond is specifically known as a **glycosidic bond** or **glycosidic linkage**. It is a covalent bond that links a carbohydrate (sugar) molecule to another group, which can be another carbohydrate or a different type of molecule.

4. **Eliminating Other Options**:
- **Peptide Bond**: This bond is formed between amino acids, not between sugars and alcohols.
- **Phosphodiester Bond**: This bond is found in nucleic acids, linking nucleotides together, and is not relevant to sugars.
- **Ester Bond**: This bond is formed between an alcohol and an acid, not specifically between a sugar and an alcohol.

5. **Conclusion**:
- The correct answer is **(b) glycosidic bond**.

### Final Answer:
(b) glycosidic bond