Assertion : Chitin is a heteropolysaccharide .
Reason : Chitin is a polymer of N-acetyl Glucosamine .

Options

A. If both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.
B. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion.
C. If Assertion is true but the Reason is false.
D. If both Assertion and Reason are false.

Answer

### Step-by-Step Solution:

1. **Understanding Chitin**:
- Chitin is a type of polysaccharide that is primarily found in the exoskeletons of arthropods, such as insects and crustaceans, as well as in the cell walls of fungi.

2. **Identifying the Assertion**:
- The assertion states that "Chitin is a heteropolysaccharide."
- A heteropolysaccharide is a polysaccharide that is made up of two or more different types of monosaccharides.

3. **Identifying the Reason**:
- The reason states that "Chitin is a polymer of N-acetyl Glucosamine."
- N-acetyl Glucosamine is indeed the primary monomeric unit that makes up chitin. Chitin is formed by the polymerization of N-acetyl Glucosamine units.

4. **Evaluating the Assertion**:
- Since chitin is composed of N-acetyl Glucosamine, it is considered a polysaccharide. However, it is made up of repeating units of the same monosaccharide (N-acetyl Glucosamine), which means it is technically a homopolysaccharide rather than a heteropolysaccharide.

5. **Evaluating the Reason**:
- The reason is correct because chitin is indeed a polymer made from N-acetyl Glucosamine.

6. **Conclusion**:
- The assertion is incorrect because chitin is a homopolysaccharide, not a heteropolysaccharide. The reason is correct. Therefore, the correct conclusion is that the assertion is false, but the reason is true.

### Final Answer:
- Assertion: False
- Reason: True