A : Specific rotation of freshly prepared aqueous solution of `alpha`- D (+) glucose and `beta` - D (+) glucose are same.
R : `alpha` - D (+) glucose and `beta` - D (+) glucose are epimers.

Options

A. If both Assertion and Reason are true and the reason is the correct explanation of the assertion, then mark (1).
B. If both Assertion and Reason are true but the reason is not the correct explanation of the assertion, then mark (2).
C. If Assertion is true statement but Reason is false, then mark (3).
D. If both Assertion and Reason are false statements, then mark (4).

Answer

To solve the assertion-reason question, we need to analyze both the assertion (A) and the reason (R) provided.

### Step-by-Step Solution:

1. **Understanding the Assertion (A)**:
- The assertion states that the specific rotation of freshly prepared aqueous solutions of α-D-glucose and β-D-glucose are the same.
- Specific rotation refers to the degree to which a compound can rotate plane-polarized light, which can vary based on the molecular structure and concentration of the solution.
- In the case of α-D-glucose and β-D-glucose, although they have different specific rotations in their crystalline forms (α-D-glucose has a specific rotation of +112° and β-D-glucose has +19°), when they are in a freshly prepared aqueous solution, they can exist in equilibrium, leading to an average specific rotation.

2. **Understanding the Reason (R)**:
- The reason states that α-D-glucose and β-D-glucose are epimers.
- Epimers are a type of diastereomer that differ in configuration at only one specific carbon atom. In the case of glucose, α-D-glucose and β-D-glucose differ in the configuration at the anomeric carbon (C1).
- However, α-D-glucose and β-D-glucose are not epimers; they are classified as anomers because they differ in configuration at the anomeric carbon (C1) specifically.

3. **Evaluating the Truth of A and R**:
- The assertion (A) is **true** because the specific rotation of the two forms can be the same when in aqueous solution due to their equilibrium.
- The reason (R) is **false** because α-D-glucose and β-D-glucose are not epimers; they are anomers.

4. **Conclusion**:
- Since the assertion is true and the reason is false, we conclude that the correct answer is that A is true and R is false.

### Final Answer:
- Assertion (A) is true.
- Reason (R) is false.
- Therefore, the correct conclusion is that the assertion is true, but the reason is not a correct explanation for the assertion.